Anatomy and Physiology Matching
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Questions and Answers

Match the historical figure or act with their contribution to the study of anatomy:

Leonardo Da Vinci = Advanced anatomical drawings and studies Anatomy Act 1832 = Regulated the supply of cadavers for anatomical study in England Public Dissections (18th Century) = Made anatomy dissections public events but tightly regulated Taboo of dissection = Restricted anatomical studies in many societies

Match each body system with its primary function:

Skeletal System = Provides support and protection Muscular System = Enables movement Nervous System = Control and communication Cardiovascular System = Transports nutrients and gases

Match the descriptive term with its correct anatomical meaning:

Anatomy = Study of the structures of the human body Physiology = Study of how body parts function Cadaver = A deceased body used for anatomical study System = A group of organs working together

Match the concept with its description:

<p>Respect for cadavers = Acknowledge the donation to science Ethanol solution = Used to preserve cadavers Body donation = Donating their body to science Anatomy Act = Governs the use of cadavers</p> Signup and view all the answers

Match these objectives with their anatomy focus:

<p>Terminology = Understanding the specific language used in anatomy to describe structures and their relationships. Body's organization = Grasping the hierarchical arrangement of the body, from cells to organ systems. Body systems = Learning about them is crucial for medical education and research. Not perfection = Understanding that a comprehensive knowledge of every detail is not essential.</p> Signup and view all the answers

Match the anatomical plane with its correct description:

<p>Sagittal plane = Divides the body into left and right sections. Coronal plane = Divides the body into front and back sections. Transverse plane = Divides the body into upper and lower sections. Oblique plane = Passes through the body at an angle.</p> Signup and view all the answers

Match the directional term with its correct definition:

<p>Superior = Toward the head or upper part of a structure. Inferior = Away from the head or toward the lower part of a structure. Proximal = Closer to the origin or point of attachment. Distal = Farther from the origin or point of attachment.</p> Signup and view all the answers

Match the anatomical term with its example:

<p>Medial = The heart is medial to the lungs. Lateral = The thumb is lateral to the pinky finger. Anterior = The sternum is anterior to the heart. Posterior = The spine is posterior to the stomach.</p> Signup and view all the answers

Match the movement with its correct definition:

<p>Flexion = Decreasing the angle between two bones. Extension = Increasing the angle between two bones. Abduction = Moving a limb away from the midline of the body. Adduction = Moving a limb toward the midline of the body.</p> Signup and view all the answers

Match the anatomical study with its description:

<p>Gross Anatomy = Study of large, visible structures. Microscopic Anatomy = Study of structures at the microscopic level. Regional Anatomy = Study of all structures in a specific body region. Systemic Anatomy = Study of the body's systems.</p> Signup and view all the answers

Match the physiological study with its system:

<p>Cardiovascular physiology = Function of the heart and blood vessels. Neurophysiology = Function of the nervous system. Renal physiology = Function of the kidneys. Respiratory physiology = Function of the lungs and airways.</p> Signup and view all the answers

Match the following terms related to anatomical position:

<p>Body upright = The standard reference point for anatomical descriptions. Feet flat = To maintain balance and proper orientation. Palms facing forward = To ensure that the radius and ulna are not crossed. Upper limbs at the body’s sides = To illustrate a clear view of the torso.</p> Signup and view all the answers

Match the example with the plane it is related to:

<p>MRI scan of the brain showing left and right hemispheres = Sagittal plane CT scan displaying the front and back of the abdomen = Coronal plane Ultrasound image showing the upper and lower parts of the liver = Transverse plane A cut made at an angle to examine the heart valves = Oblique plane</p> Signup and view all the answers

Match the following system functions to the correct human body system:

<p>Glands secrete hormones = Endocrine System Breaks down food into molecules = Digestive System Produces sex hormones = Reproductive System Maintains water and nutrient balance = Endocrine System</p> Signup and view all the answers

Match the following descriptions to the correct human body systems:

<p>Interacts with the Nervous System = Endocrine System From oral cavity to anus = Digestive System Male and Female = Reproductive System Regulates processes = Endocrine System</p> Signup and view all the answers

Match the processes to the system that does it:

<p>Growth = Endocrine System Absorption = Digestive System Making Babies = Reproductive System Distribution = Digestive System</p> Signup and view all the answers

Match the following actions to the primary system involved:

<p>Secretion = Endocrine System Digestion = Digestive System Reproduction = Reproductive System Regulation = Endocrine System</p> Signup and view all the answers

Match the joint classification with its degree of movement:

<p>Synarthroses = Immovable Amphiarthroses = Slightly movable Diarthroses = Freely movable Fibrous = Typically immovable</p> Signup and view all the answers

Match the following terms to the system with which they are MOST associated:

<p>Hormones = Endocrine System Molecules for absorption = Digestive System Sex = Reproductive System Nutrient balance = Endocrine System</p> Signup and view all the answers

Match the type of synovial joint with its characteristic movement:

<p>Hinge joint = Flexion and extension Pivot joint = Rotation Ball and socket joint = Multiaxial movement Plane joint = Gliding</p> Signup and view all the answers

Match the structural joint type with its composition:

<p>Fibrous joints = Dense connective tissue Cartilaginous joints = Cartilage Synovial joints = Joint cavity with fluid Solid joint = Lacks a joint cavity</p> Signup and view all the answers

Match the movement with the action it describes:

<p>Flexion = Decreasing the angle between bones Extension = Increasing the angle between bones Abduction = Moving away from the midline Adduction = Moving toward the midline</p> Signup and view all the answers

Match the synovial joint example with its type:

<p>Elbow = Hinge joint Hip = Ball and socket joint Intercarpal joints = Plane joint Radioulnar joint = Pivot joint</p> Signup and view all the answers

Match the joint type with its primary structural component:

<p>Suture = Fibrous connective tissue Symphysis = Fibrocartilage Synchondrosis = Hyaline cartilage Syostosis = Bone</p> Signup and view all the answers

Match the type of movement with its descriptive term:

<p>Circumduction = Conical movement Supination = Turning palm anteriorly Pronation = Turning palm posteriorly Opposition = Thumb to fingertips</p> Signup and view all the answers

Match the following joint conditions with their description

<p>Arthritis = Inflammation of the joint Sprain = Stretched or torn ligaments Dislocation = Bones out of alignment Synovitis = Inflammation of the synovial membrane</p> Signup and view all the answers

Match each part of the respiratory system with its function:

<p>Trachea = Passage of air to the bronchi Alveoli = Gas exchange with the blood Larynx = Voice production Pharynx = Connects the nasal cavity to the larynx</p> Signup and view all the answers

Match the blood vessel type with its primary function:

<p>Arteries = Carry blood away from the heart Veins = Return blood to the heart Capillaries = Exchange of gases, nutrients, and wastes with tissues Pulmonary artery = Carries deoxygenated blood to the lungs</p> Signup and view all the answers

Match the component of the lymphatic system with its role:

<p>Lymphatic capillaries = Absorb interstitial fluid Lymph nodes = Filter lymph and facilitate immune response Thymus = Site of T cell maturation Lymph vessels = Transport lymph</p> Signup and view all the answers

Match these parts of the circulatory system with their respective locations in the pulmonary and systemic circuits:

<p>Pulmonary artery = Carries blood from the right ventricle to the lungs Pulmonary vein = Returns oxygenated blood from the lungs to the left atrium Aorta = Distributes oxygenated blood from the left ventricle to the body Right ventricle = Pumps blood to the lungs</p> Signup and view all the answers

Match each type of lymphoid organ with its primary function:

<p>Thymus = Maturation of T lymphocytes Spleen = Filters blood and removes damaged blood cells Lymph nodes = Filters lymph and activates immune responses Bone marrow = Generation of lymphocytes</p> Signup and view all the answers

Match the vessel with its type of blood that it carries:

<p>Systemic Arteries = Oxygenated Blood Pulmonary Vein = Oxygenated Blood Systemic Veins = Deoxygenated Blood Pulmonary Artery = Deoxygenated Blood</p> Signup and view all the answers

Match the nervous system division with its function:

<p>Central Nervous System = Processes information and coordinates responses. Peripheral Nervous System = Transmits sensory input to the CNS and motor output from the CNS. Somatic Nervous System = Controls voluntary movements of skeletal muscles. Autonomic Nervous System = Controls involuntary functions such as heart rate and digestion.</p> Signup and view all the answers

Match each respiratory structure with its characteristic:

<p>Nasal Cavities = Filters, warms, and moistens air Bronchioles = Regulates airflow into alveoli Larynx = Houses the vocal cords Alveoli = Site of gas exchange with capillaries</p> Signup and view all the answers

Match the type of blood vessel to describe its structural component:

<p>Arteries = Thick walls with smooth muscle Veins = Thin walls with valves Capillaries = Single layer of endothelial cells Lymph Vessels = Thin walls with valves, transport Lymph.</p> Signup and view all the answers

Match the neuron structure with its function:

<p>Soma = Contains the nucleus and other essential organelles. Dendrites = Receives signals from other neurons. Axon = Transmits electrical impulses away from the cell body. Axon terminal = Releases neurotransmitters to communicate with other neurons.</p> Signup and view all the answers

Match the following parts of the circulatory system with their functions:

<p>Arteries = Transports blood at high pressure away from the heart Capillaries = Allows for diffusion of gases and nutrients with the body's tissues Veins = Returns blood to the heart at low pressure Lymphatic vessels = Returns fluid leakage to the circulatory system</p> Signup and view all the answers

Match the sensory or motor function with its description:

<p>Sensory input = Monitors changes inside and outside the body. Integration = Processes and interprets sensory information. Motor output = Activates effector organs to produce a response. Sensory receptors = Structures that detects changes in the environment.</p> Signup and view all the answers

Match the following components of the lymphatic system to their role

<p>Lymphatic capillaries = Collect fluid and proteins from the interstitial space Lymph nodes = Filters lymph and activates the immune system Thymus = Gland where T-cells mature Lymphocytes = White blood cells responsible for adaptive immunity</p> Signup and view all the answers

Match the type of bone with an example:

<p>Long bone = Femur Short bone = Carpal Flat bone = Sternum Irregular bone = Vertebra</p> Signup and view all the answers

Match the division of the peripheral nervous system with its function:

<p>Sensory Division = Transmits impulses from sensory receptors to the CNS. Motor Division = Transmits impulses from the CNS to effector organs. Somatic Nervous System = Controls voluntary movements of skeletal muscles. Autonomic Nervous System = Regulates involuntary functions, such as heart rate and digestion.</p> Signup and view all the answers

Match the joint type with a description:

<p>Fibrous joint = Immovable or slightly movable, connected by fibrous tissue. Cartilaginous joint = Allows limited movement, connected by cartilage. Synovial joint = Freely movable, contains a fluid-filled joint cavity. Joint = The site where two or more bones meet allowing movement / articulation</p> Signup and view all the answers

Match the function with the correct skeletal system component:

<p>Bones = Provide support, protection, and facilitate movement. Joints = Allow movement and articulation between bones. Ligaments = Connect bones to each other, providing stability. Cartilage = Provides cushioning and reduces friction in joints.</p> Signup and view all the answers

Match each structure to its system:

<p>Brain = Central Nervous System Femur = Skeletal System Sensory Neuron = Peripheral Nervous System Joints = Skeletal System</p> Signup and view all the answers

Match each type of neuron with its function:

<p>Sensory neuron = Transmits impulses from sensory receptors to the central nervous system. Motor neuron = Carries impulses from the central nervous system to effectors. Interneuron = Connects sensory and motor neurons in the central nervous system. Glial cells = Non-neuronal cells that maintain homeostasis, form myelin, and provide support and protection for neurons in the central nervous system and peripheral nervous system.</p> Signup and view all the answers

Match the type of bone with a specific example:

<p>Sesamoid bone = Patella (kneecap) Flat bone = Sternum Long bone = Tibia Irregular bone = Vertebrae</p> Signup and view all the answers

Match the structure with its description:

<p>Vertebral column = Protects the spinal cord and provides support for the body. Thoracic cage = Protects the heart and lungs. Skull = Protects the brain and houses sensory organs. Axial skeleton = Includes the skull, vertebral column, and thoracic cage.</p> Signup and view all the answers

Match each term with its role in the nervous system:

<p>Synapse = Junction between two neurons, allowing transmission of signals. Neurotransmitter = Chemical that transmits signals across a synapse. Action potential = Electrical signal that travels along the axon of a neuron. Resting potential = Electrical potential of a neuron when not stimulated.</p> Signup and view all the answers

Match each movement of the limb with its description:

<p>Flexion = Decreases the angle between two bones. Extension = Increases the angle between two bones. Abduction = Movement of a limb away from the midline of the body. Adduction = Movement of a limb toward the midline of the body.</p> Signup and view all the answers

Match the component of a neuron with its primary role:

<p>Myelin sheath = Insulates the axon, increasing the speed of signal transmission. Nodes of Ranvier = Gaps in the myelin sheath that allow for rapid ion exchange. Schwann cells = Form the myelin sheath in the peripheral nervous system. Efferent Neurons = Takes information from the CNS to target cells</p> Signup and view all the answers

Match the term with the nervous system division:

<p>Fight or Flight = Sympathetic Division Rest &amp; Digest = Parasympathetic Division Controls Involuntary movements = Autonomic Nervous System Controls Voluntary movement = Somatic Nervous System</p> Signup and view all the answers

Flashcards

Anatomy

The structures of the human body.

Human Body

A collection of systems working together for proper function.

Anatomy Definition

The study of the structure of the human body parts.

Physiology Definition

Studying how body parts fit and work together.

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Cadavers

Remains of people who donated their body to science.

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Gross Anatomy

Study of large body structures visible without a microscope.

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Microscopic Anatomy

Study of body structures using a microscope.

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Developmental Anatomy

The study of structural changes from conception to adulthood.

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Physiology

Study of the function of body systems or organs.

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Anatomical Position

Facing forward, feet flat, palms forward.

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Sagittal Plane

Divides the body into left and right portions.

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Coronal Plane

Divides the body into front and back portions.

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Transverse Plane

Divides the body into upper and a lower portion.

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Endocrine System

Glands that secrete hormones to regulate bodily processes.

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Digestive System

Breaks down food for absorption into the blood, supplying nutrients to tissues.

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Reproductive System

Produces sex hormones and enables reproduction.

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Endocrine System Function

Maintains water and nutrient balance in the body.

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Endocrine System Interaction

The system which interacts with the nervous system.

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Synarthroses

Non-moving joints.

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Amphiarthroses

Partly moving joints.

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Diarthroses

Fully moving joints.

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Fibrous Joints

Joints connected by dense fibrous connective tissues; mostly immovable.

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Cartilaginous Joints

Joints connected by cartilage, allowing limited movement and lacking a cavity.

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Synovial Joints

Freely movable joints characterized by a joint cavity.

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Plane Joint Movement

Allows gliding or sliding movements.

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Hinge Joint Movement

Allows movement in one plane (flexion and extension).

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Upper Airways

Includes the oral and nasal cavities, pharynx, and larynx.

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Lower Airways and Lungs

Includes the trachea, bronchi, bronchioles, and lungs (with alveoli).

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Circulatory System

The body's transport network, working with the respiratory system.

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The Heart

Pumps blood around the body using cardiac muscle.

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Blood Vessels

Arteries, veins, and capillaries that carry blood to/from tissues.

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Capillaries

Microscopic, thin-walled vessels where gas, nutrient, and waste exchange occurs.

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Arteries

Carries blood away from the heart.

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Veins

Returns blood to the heart.

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Pulmonary Circulation

Right atrium → Right ventricle → Pulmonary artery → Lungs → Pulmonary vein → Left atrium → Left ventricle → Aorta

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Lymphatic System

A network of vessels carrying lymph absorbed from interstitial fluid, draining back to the circulatory system.

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Nervous System: Function

Detects internal/external stimuli (hunger, environment) and enables the body to react (movement).

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Nervous System: Steps

Sensory input, integration, and motor output.

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Central Nervous System (CNS)

Brain and spinal cord.

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Motor (Efferent) Division

Takes info from the CNS to target cells via efferent neurons.

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Sensory (Afferent) Division

Sends information to the CNS through sensory neurons.

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Somatic Nervous System

Controls voluntary movement.

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Autonomic Nervous System

Controls involuntary movements.

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Sympathetic Division

"Fight or Flight" response.

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Parasympathetic Division

"Rest and Digest" functions.

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Neurons Function

Sensing stimuli and sending electrical impulses.

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Soma

Cell body.

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Synapse

Bridge between neurons.

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Skeletal System: Functions

Protects organs, provides framework for movement, forms blood cells, and stores minerals.

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Axial Skeleton

Skull, vertebral column, and thoracic cage.

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Joint

Where two or more bones meet, allowing movement.

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Study Notes

  • Introduction to Human Anatomy is the topic of study
  • The course code is NURS5042
  • Dr Kyungjoon Lim (AKA: Joon) is the instructor

Anatomy

  • It studies the collection of systems that work together for proper function

Anatomy Cadavers

  • Anatomy dissection was taboo in many societies
  • Leonardo Da Vinci studied Anatomy
  • Anatomy dissection was public, tightly regulated in 18th century
  • Anatomy Act 1832 led to cadavers being supplied from executed murderers
  • Cadavers are the remains of people who donated their bodies to science
  • When using cadavers you should show respect
  • The Anatomy Act governs the use of cadavers
  • Bodies are stored in ethanol solution when not in use

Anatomy & Physiology

  • Anatomy studies the structure of human body parts
  • Physiology studies how body parts fit and work together
  • Anatomy is what your body is
  • Physiology is what is does

Objectives

  • Need to understand the terminology used in Anatomy
  • Need to understand the range of body's organization
  • Need to describe and understand the main body systems

Topics of Anatomy

  • Gross (macroscopic) anatomy studies large body structures
  • Regional anatomy focuses on all structures in a particular body part
  • Systemic anatomy studies body structures system by system
  • Surface anatomy relates to the overlying skin surface
  • Microscopic Anatomy
  • Developmental anatomy traces structural changes
  • Embryology is part of developmental anatomy

Topics of Physiology (Operation of specific organ system)

  • Cardiovascular physiology
  • Neurophysiology
  • Renal physiology
  • Etc.

Anatomical Terminology (Directional term)

  • Anatomical Position requires the body upright, directly facing the observer
  • The observer's feet should be flat and directed forward
  • The upper limbs are at the sides with palms facing forward
  • Sagittal divides the body into Left and Right
  • Medial/Lateral
  • Coronel divides the body into front and back
  • Anterior/Posterior
  • Transverse is up and down
  • Superior/Inferior
  • Proximal/Distal

Anatomical Terminology

  • Superficial means nearer to the surface
  • The muscles of the arm are superficial to its bone (humerus)
  • Superior (cranial) means nearer to the head
  • The heart is superior to the stomach
  • Intermediate is between a superficial and a deep structure
  • The biceps muscle is intermediate between the skin and the humerus
  • Deep means further from the surface
  • The humerus is deep to the arm muscles
  • Palmar refers to the anterior hand (palm)
  • Dorsal refers to the posterior hand (dorsum)
  • Plantar refers to the inferior foot surface (sole)
  • Dorsal refers to the superior foot surface (dorsum)

Anatomical Terms of movement

  • Terms to describe body movements

Anatomical position & planes: a practice

  • Practice how to understand the position of the human body

Body Organization

  • The function of a cell/organ/organism reflects its form
  • Blood flow in one direction through the heart (due to valves)
  • Bones protect and support organs
  • A structure's function depends on its specific form
  • Complementarity of structure and function is a basic idea

Body Organization levels

  • Atoms are at the Chemical level which combine to form molecules
  • Molecules interact to form Organelles which can form cells
  • Cells are at the Cellular level which are made up of molecules
  • Tissues consist of similar types of cells at the tissue level
  • Organs are made up of different types of tissues at the organ level
  • Organ systems consist of different organs that work together at the organ system level
  • The human organism is made up of many organ systems at the organismal level

Major Body Systems

  • Skeletal System protects and gives the body framework for support
  • Muscular System controls movement and locomotion
  • Circulatory System transports blood around the body powered by the heart
  • Endocrine System secretes hormones and regulates growth, reproduction, metabolism
  • Lymphatic System monitors for and attacks with infectious agents
  • Nervous System controls the body and responds to changes
  • The Respiratory System supplies blood with Oâ‚‚ and removes waste
  • Digestive System breaks down and absorbs food
  • Urinary system
  • Reproductive system
  • Integumentary system

Body Cavities

  • The dorsal body cavity includes the cranial and vertebral cavities
  • Superior mediastinum, pleural cavity and pericardial cavity within the mediastinum and diaphragm make up the thoracic cavity
  • There is also an abdominal cavity
  • There is also pelvic cavity
  • The ventral body cavity includes both thoracic and abdominopelvic cavities

Nervous System

  • A principal function is to be an ultra-fast communication system
  • It allows the body to sense its experience of itself (hunger, thirst, pain)
  • It allows the body to sense the external environment (heat, light, predators)
  • Enables the body to react to these stimuli (e.g. initiate movement).

Nervous System Principal function

  • Sensory input
  • Integration
  • Motor Output

Nervous System Divisions

  • Central Nervous System (Brain & Spinal Cord)
  • Peripheral Nervous System
  • Motor Division "Efferent Division"
    • Takes information from the CNS to target cells through Efferent Neurons
    • Somatic Nervous System controls Voluntary Movement
    • Autonomic Nervous System controls Involuntary Movements
      • Sympathetic Division "Fight or Flight"
      • Parasympathetic Division "Rest & Digest"
  • Sensory Division "Afferent Division"
    • Sends information to the CNS through Sensory Neurons

Nervous system: Neurons

  • Neurons sense stimuli and send electrical impulses throughout the body
  • They are communicating cells and respond to stimuli
  • They transmit electrical messages from their cell body to their axon terminal
  • Synapse: Bridge or junction between Neurons

Neuron Basic structure

  • Soma/Cell body
  • Dendrites
  • Axon
  • Axon terminal

Skeletal System

  • The human body contains an about 206 bones
  • The body organs are protected and supported by it
  • Provides a framework the muscle use to cause movement
  • Blood cells are formed within the bone
  • Bones store minerals

Axial & Appendicular Skeleton

  • Axial skeleton (blue): 80 bones in the skull, vertebral column, and thoracic cage region
  • Appendicular skeleton

Skeletal System: Classification of bones

  • Long (Femur, Tibia, fibula)
  • Short (Tarsus, carpus)
  • Flat (Bones of the cranium, Scapula, sternum)
  • Irregular (Vertebrae, pelvis)
  • Sesamoid (Patella)

Skeletal System

  • Joint: The site where two or more bones meet allowing movement / articulation
  • Body movements occurs when muscles contract across joints, moving one bone toward another.

Skeletal system: Joints

  • Functional classification of joints:
    • Synarthroses (non-moving joints)
    • Amphiarthroses (partly moving)
    • Diarthroses (Fully moving)
  • Structural/Histological classification of joints:
    • Fibrous joints (dense fibrous connective tissues / mostly immovable)
    • Cartilaginous joints (cartilage / limited movement, no cavity)
    • Synovial joints (freely movable)

Skeletal system: Histological Joints

  • Histological types of joints:
    • Synovial joint
    • Solid joint

Skeletal system: Joints

  • Types of synovial joint:
    • Plane joint
    • Hinge joint
    • Pivot joint
    • Condylar joint
    • Saddle joint
    • Ball-and-socket joint

Skeletal system: Joints and Body movements

  • Movements of synovial joints include:
    • Gliding, flexion, extension, abduction, adduction and circumduction
    • Plane joints facilitate gliding movement
    • Hinge joints (uniaxial) facilitate flexion and extension
    • Condylar joints (biaxial) are used when making a fist
    • Ball and socket joints (multiaxial) are for multiaxial movement (spinning arm)
    • Saddle joints (biaxial) are used when giving a thumbs up
    • Pivot joints (uniaxial) are used to control supination/pronation (elbow)

Muscular System

Allows locomotion and movement Stabilise joints Maintains posture Produce heat Organ protection

  • Muscles have the following:

    • Excitability
    • Contractility
    • Extensibility
    • Elasticity
  • Muscle types are either:

    • Skeletal
    • Smooth
    • Cardiac
  • Skeletal is voluntarily controlled; for movement of the body

  • Smooth is involuntarily controlled; around internal organs and blood vessels

  • Cardiac is involuntarily controlled and are found only in the heart

  • Skeletal muscles are attached to bones or sometimes facial muscles

  • Cardiac muscles are wall of the heart

  • Smooth muscles are unitary muscles in walls of hallow visceral organs, multi unit muscles, airways and large arteries

  • Skeletal muscles are single, very long, cylindrical, multinucleate cells with obvious striations

  • Cardiac muscles are branching chains of cells; uni- or binucleate; striations with intercalated discs

  • Smooth muscles are are single, fusiform, uninucleate; no striations

Respiratory system

  • Provides constant supply of oxygen in the blood

  • Allows gas exchange/Removes waste

  • Inspiration: sucks air in

  • Expiration: blows air out

  • Quiet breathing enabled by contraction/relaxation of diaphragm

  • Forced breathing recruit accessory muscles to move the rib cage

  • Air flows from higher to lower pressure

    • Pressure is inversely proportional to Volume (Boyle's law)
    • Elevation of the ribs causes inspiration: Air flows from outside into the lungs
      • Increase thoracic volume
      • Decrease in intrathoracic pressure
    • Depression of the ribs causes expiration: Air flows from lungs to outside
      • Decrease in thoracic volume
      • Increase in intrathoracic pressure
  • Lungs have no skeletal muscles

  • Respiratory muscles change the volume of the thoracic cavity and include:

    • diaphragm
    • intercostal muscles
    • accessory muscles (neck and abdominals muscles)

Thoracic diaphragm & Intercostal muscles

  • The Musculo-tendinous sheet separates thorax from abdomen
  • Intercostal muscles:
    • External
    • Internal
    • Innermost (from superficial to deep)

Respiratory System contains these

  • Upper airways
    • Oral and Nasal cavities
    • Pharynx
    • Larynx
  • Lower airways and Lungs
    • Trachea, Bronchi and Bronchioles
    • Left and Right Lungs
    • Alveoli

Circulatory / Cardiovascular System

  • The body's transport system
  • BFF(Best friends forever) with the Respiratory system
  • Blood vessels transports food, hormones, metabolic wastes, and gases to and from cells

Pulmonary Circulation

  • Right Atrium-Right Ventricle-Pulmonary Artery-Lungs-Pulmonary Vein-Left Atrium-Left Ventricle-Aorta

Systemic Circulation

  • Left ventricle Ascending aorta All the body tissues
  • Arteries carry blood to the heart and veins carry to the body except the pulmonary artery and vein

Lymphatic System

  • A network of one-way vessels that carry clear fluid (lymph) that has been absorbed from interstitial fluid
  • Lymph vessels drain lymph back to the circulatory system.
  • Lymph nodes are clustered around the lymph network, and filter lymph.
  • Lymphocytes can stimulate an immune response.

Lymphatic System

  • Conducting system consists of:
    • Lymphatic capillaries and vessels
    • Drain lymph back into the venous system
    • 1° Lymphoid Organs (generate lymphocytes): Thymus & bone marrow
    • 2° Lymphoid Organs (mature lymphocytes): Spleen, Tonsils, Adenoids, Lymph nodes

Endocrine System

  • Involves glands which secrete hormones
  • Regulates processes such as growth, reproduction and metabolism
  • Maintains water and nutrient balance
  • Interacts with the Nervous system

Digestive System

  • Breaks down food into molecules for absorption into the blood and distribution to tissues.
  • It runs from the oral cavity to anus

Reproductive System

  • Male and Female Reproductive system
  • produce sex Hormones & making babies

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Engage with anatomy and physiology through matching exercises. These questions cover key body systems, directional terms, anatomical positions, and more. Test and reinforce your comprehension of the human body's structure and function.

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