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Questions and Answers
What is the term synonymous with the anterior aspect of the body?
What is the term synonymous with the anterior aspect of the body?
- Superior
- Caudal
- Ventral (correct)
- Dorsal
What does the medial plane do?
What does the medial plane do?
- Separates the body into anterior and posterior sections
- Divides the body into equal right and left halves (correct)
- Runs parallel to the ground
- Divides the body into upper and lower parts
Which plane divides the body into superior and inferior portions?
Which plane divides the body into superior and inferior portions?
- Sagittal Plane
- Frontal Plane
- Transverse Plane (correct)
- Medial Plane
The term inferior is synonymous with which of the following?
The term inferior is synonymous with which of the following?
Which plane divides the body into front and back halves?
Which plane divides the body into front and back halves?
What does the term 'anatomy' refer to?
What does the term 'anatomy' refer to?
Which level of organization represents a group of similar cells?
Which level of organization represents a group of similar cells?
What does developmental anatomy study?
What does developmental anatomy study?
What aspect of physiology does systemic physiology examine?
What aspect of physiology does systemic physiology examine?
What type of anatomy involves examining structures without the aid of a microscope?
What type of anatomy involves examining structures without the aid of a microscope?
Which of the following is true about cell physiology?
Which of the following is true about cell physiology?
What does the chemical level of organization involve?
What does the chemical level of organization involve?
What is the main focus of gross anatomy?
What is the main focus of gross anatomy?
What is primarily affected in the body when negative-feedback mechanisms fail?
What is primarily affected in the body when negative-feedback mechanisms fail?
Which mechanism is typically harmful rather than helpful?
Which mechanism is typically harmful rather than helpful?
In the anatomical position, which direction do the palms face?
In the anatomical position, which direction do the palms face?
What is a condition that can arise from inadequate blood delivery to cardiac muscle?
What is a condition that can arise from inadequate blood delivery to cardiac muscle?
What does the term 'supine' refer to?
What does the term 'supine' refer to?
During blood loss, which substance stimulates the production of more thrombin?
During blood loss, which substance stimulates the production of more thrombin?
What is one example of negative-feedback mechanism failure related to body temperature?
What is one example of negative-feedback mechanism failure related to body temperature?
Which of the following describes how directional terms are used?
Which of the following describes how directional terms are used?
What separates the parietal and visceral serous membranes?
What separates the parietal and visceral serous membranes?
Which organs are located in the pelvic cavity?
Which organs are located in the pelvic cavity?
What is the role of the parietal serous membrane?
What is the role of the parietal serous membrane?
Where is the pericardial cavity located?
Where is the pericardial cavity located?
Which statement correctly describes the peritoneal cavity?
Which statement correctly describes the peritoneal cavity?
What is the name of the serous membrane covering the lungs?
What is the name of the serous membrane covering the lungs?
Which structure is NOT housed in the abdominal cavity?
Which structure is NOT housed in the abdominal cavity?
What fills the pleural cavity?
What fills the pleural cavity?
What are organelles within cells responsible for?
What are organelles within cells responsible for?
What defines an organ in the human body?
What defines an organ in the human body?
What does an organ system consist of?
What does an organ system consist of?
Which of the following is the highest level of structural organization?
Which of the following is the highest level of structural organization?
What characteristic of life involves an organism's ability to utilize energy?
What characteristic of life involves an organism's ability to utilize energy?
What is meant by the organization in the context of characteristics of life?
What is meant by the organization in the context of characteristics of life?
How does responsiveness as a characteristic of life manifest?
How does responsiveness as a characteristic of life manifest?
What type of organisms can be classified as living things?
What type of organisms can be classified as living things?
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Study Notes
Anatomy and Physiology Overview
- Anatomy studies the structural organization of the body; it involves dissection to examine bodily structures.
- Physiology investigates the functions and processes of living organisms, focusing on how body systems operate.
Types of Anatomy
- Developmental Anatomy: Explores structural changes from conception to adulthood.
- Gross Anatomy: Investigates structures observable without a microscope, approached either systematically (by system) or regionally (by area).
- Cell Physiology: Examines cellular processes, such as energy production.
- Systemic Physiology: Focuses on the functions of organ systems, e.g., cardiovascular and neurophysiology.
Levels of Organization
- Chemical Level: Involves atom interactions forming molecules; e.g., hydrogen and carbon.
- Cell Level: Cells are basic structural and functional units, containing organelles that perform specific tasks.
- Tissue Level: Tissues are groups of similar cells with surrounding materials that determine their functional roles.
- Organ Level: Organs are formed from two or more tissue types working together to perform complex functions.
- Organ System Level: Groups of organs collaborate for common purposes (e.g., respiratory system).
- Organism Level: An individual living entity made up of one or more cells.
Characteristics of Life
- Organization: Specific interrelationships among body parts to function cohesively.
- Metabolism: Energy utilization for vital functions such as growth and reproduction.
- Responsiveness: Adjusting to environmental changes, both internal and external.
Homeostasis
- The maintenance of stable internal conditions; emphasizes negative feedback mechanisms to return to set points.
- Positive feedback mechanisms amplify responses, seen in blood clot formation and childbirth, but can lead to detrimental effects if mishandled.
Body Position and Terminology
- Anatomical Position: Body standing upright, facing forward, arms at sides with palms facing forward.
- Directional Terms:
- Superior (toward the head) and inferior (away from the head)
- Anterior (front) and posterior (back)
- Cephalic and caudal can also be used interchangeably.
Body Plans and Sections
- Planes: Imaginary flat surfaces that divide the body:
- Sagittal Plane: Divides into right and left sections.
- Medial Plane: A sagittal cut along the midline creating equal halves.
- Transverse Plane: Divides the body into superior (upper) and inferior (lower) parts.
- Frontal Plane: Divides body into anterior (front) and posterior (back) sections.
Body Cavities
- Abdominal Cavity: Contains most digestive organs, part of the peritoneal cavity.
- Pelvic Cavity: Houses urinary bladder, large intestine, reproductive organs.
- Serous Membranes: Line body cavities, comprising:
- Parietal Serous Membrane: Lines cavity walls.
- Visceral Serous Membrane: Covers internal organs, separated by serous fluid.
Thoracic Cavity Membranes
- Pericardial Cavity: Surrounds the heart; parietal pericardium lines the cavity and visceral pericardium covers the heart.
- Pleural Cavity: Surrounds each lung; contains parietal pleura (lining) and visceral pleura (covering lungs).
- Peritoneal Cavity: Contains various internal organs with layers of peritoneal membranes.
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