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Questions and Answers
What type of reaction breaks down larger molecules into smaller molecules, releasing energy?
What type of reaction breaks down larger molecules into smaller molecules, releasing energy?
Which of the following mixtures has particles that are dispersed but not dissolved, and do not settle out?
Which of the following mixtures has particles that are dispersed but not dissolved, and do not settle out?
What is the measure of concentration defined as moles of solute per kilogram of solvent?
What is the measure of concentration defined as moles of solute per kilogram of solvent?
Which of the following is NOT a type of lipid?
Which of the following is NOT a type of lipid?
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Which type of carbohydrate provides quick energy?
Which type of carbohydrate provides quick energy?
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Which of the following is NOT a function of proteins?
Which of the following is NOT a function of proteins?
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Which type of nucleic acid is involved in protein synthesis?
Which type of nucleic acid is involved in protein synthesis?
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What is the main difference between a solution and a suspension?
What is the main difference between a solution and a suspension?
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Which of the following terms refers to a body part located on the same side of the body as another part?
Which of the following terms refers to a body part located on the same side of the body as another part?
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The term 'cranial' refers to a structure that is:
The term 'cranial' refers to a structure that is:
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Which anatomical region corresponds to the upper arm?
Which anatomical region corresponds to the upper arm?
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What level of organization in the human body involves groups of similar cells working together to perform a common function?
What level of organization in the human body involves groups of similar cells working together to perform a common function?
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The 'patellar' region refers to which part of the body?
The 'patellar' region refers to which part of the body?
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Which of the following is NOT an example of a specific anatomical region?
Which of the following is NOT an example of a specific anatomical region?
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What is the term used to describe a body part located on the opposite side of the body from another?
What is the term used to describe a body part located on the opposite side of the body from another?
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Which of the following pairs of terms are used to describe positions that are relative to the body's midline?
Which of the following pairs of terms are used to describe positions that are relative to the body's midline?
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Which of the following cellular structures is responsible for breaking down fatty acids and detoxifying harmful compounds?
Which of the following cellular structures is responsible for breaking down fatty acids and detoxifying harmful compounds?
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What cellular structure is primarily responsible for generating ATP through cellular respiration?
What cellular structure is primarily responsible for generating ATP through cellular respiration?
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Which of the following is NOT a component of the cytoskeleton?
Which of the following is NOT a component of the cytoskeleton?
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What is the primary function of the Golgi apparatus?
What is the primary function of the Golgi apparatus?
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Which of the following is associated with the process of protein denaturation?
Which of the following is associated with the process of protein denaturation?
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What is the primary function of ribosomes?
What is the primary function of ribosomes?
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Which cellular structure is directly involved in organizing the mitotic spindle during cell division?
Which cellular structure is directly involved in organizing the mitotic spindle during cell division?
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Which of the following cellular structures is responsible for synthesizing ribosomal RNA (rRNA)?
Which of the following cellular structures is responsible for synthesizing ribosomal RNA (rRNA)?
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Which type of epithelial tissue is found in the male reproductive tract and lacks cilia?
Which type of epithelial tissue is found in the male reproductive tract and lacks cilia?
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Which type of connective tissue is responsible for providing elasticity and stretch in the skin and lungs?
Which type of connective tissue is responsible for providing elasticity and stretch in the skin and lungs?
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Which epithelial tissue type is characterized by cells that change shape depending on stretch, and is found in the urinary bladder and ureters?
Which epithelial tissue type is characterized by cells that change shape depending on stretch, and is found in the urinary bladder and ureters?
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Which connective tissue type is responsible for storing fat and is found beneath the skin and around organs?
Which connective tissue type is responsible for storing fat and is found beneath the skin and around organs?
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Which type of epithelial tissue is found in the lining of the mouth and esophagus?
Which type of epithelial tissue is found in the lining of the mouth and esophagus?
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Which of the following pairs correctly matches the connective tissue type with its primary function?
Which of the following pairs correctly matches the connective tissue type with its primary function?
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Which type of connective tissue features collagen fibers arranged in various directions, providing strength in the dermis of the skin?
Which type of connective tissue features collagen fibers arranged in various directions, providing strength in the dermis of the skin?
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What is the primary function of collagen fibers in connective tissue?
What is the primary function of collagen fibers in connective tissue?
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Which type of cartilage provides flexibility and is found in the ear and epiglottis?
Which type of cartilage provides flexibility and is found in the ear and epiglottis?
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What is the primary function of skeletal muscle?
What is the primary function of skeletal muscle?
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Which of the following is NOT a characteristic of smooth muscle?
Which of the following is NOT a characteristic of smooth muscle?
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Which layer of the epidermis is responsible for cell division and contains melanocytes?
Which layer of the epidermis is responsible for cell division and contains melanocytes?
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Which of the following is NOT a function of the integumentary system?
Which of the following is NOT a function of the integumentary system?
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Which type of connective tissue is found in blood vessels and carries oxygen, nutrients, and waste products?
Which type of connective tissue is found in blood vessels and carries oxygen, nutrients, and waste products?
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Which of the following is a type of supporting connective tissue that provides tensile strength and is found in intervertebral discs and menisci?
Which of the following is a type of supporting connective tissue that provides tensile strength and is found in intervertebral discs and menisci?
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Which of the following is the main function of nervous tissue?
Which of the following is the main function of nervous tissue?
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What type of gland releases secretions by rupturing the entire cell, resulting in the discharge of both secretion and cell debris?
What type of gland releases secretions by rupturing the entire cell, resulting in the discharge of both secretion and cell debris?
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Which tissue type is primarily responsible for transmitting electrical signals in the body?
Which tissue type is primarily responsible for transmitting electrical signals in the body?
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What is the primary function of epithelial tissue?
What is the primary function of epithelial tissue?
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Where is simple cuboidal epithelium typically found in the body?
Where is simple cuboidal epithelium typically found in the body?
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Which type of epithelial tissue is characterized by a single layer of flat cells?
Which type of epithelial tissue is characterized by a single layer of flat cells?
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What is a key characteristic of connective tissue?
What is a key characteristic of connective tissue?
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Which type of epithelial tissue contains microvilli and is primarily involved in absorption?
Which type of epithelial tissue contains microvilli and is primarily involved in absorption?
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How does muscle tissue primarily function in the body?
How does muscle tissue primarily function in the body?
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Flashcards
Chemical Level
Chemical Level
The lowest level of organization, includes atoms and molecules like water and glucose.
Cellular Level
Cellular Level
Basic unit of life where cells, such as muscle or nerve cells, are formed.
Tissue Level
Tissue Level
Groups of similar cells performing a common function, including epithelial and connective tissues.
Organ Level
Organ Level
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Superior (Cranial)
Superior (Cranial)
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Distal
Distal
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Acromial
Acromial
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Antebrachial
Antebrachial
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Catabolic Reactions
Catabolic Reactions
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Anabolic Reactions
Anabolic Reactions
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Solutes
Solutes
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Solution
Solution
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Colloid
Colloid
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Suspension
Suspension
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Lipids
Lipids
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Nucleic Acids
Nucleic Acids
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Protein Denaturation
Protein Denaturation
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Centriole
Centriole
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Cytoplasm
Cytoplasm
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Cytoskeleton
Cytoskeleton
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Golgi Apparatus
Golgi Apparatus
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Mitochondria
Mitochondria
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Plasma Membrane
Plasma Membrane
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Ribosome
Ribosome
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Elastic Connective Tissue
Elastic Connective Tissue
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Hyaline Cartilage
Hyaline Cartilage
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Fibrocartilage
Fibrocartilage
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Elastic Cartilage
Elastic Cartilage
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Compact Bone
Compact Bone
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Spongy Bone
Spongy Bone
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Skeletal Muscle
Skeletal Muscle
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Cardiac Muscle
Cardiac Muscle
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Nonciliated Pseudostratified Columnar Epithelium
Nonciliated Pseudostratified Columnar Epithelium
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Ciliated Pseudostratified Columnar Epithelium
Ciliated Pseudostratified Columnar Epithelium
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Stratified Squamous Epithelium
Stratified Squamous Epithelium
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Stratified Cuboidal Epithelium
Stratified Cuboidal Epithelium
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Transitional Epithelium
Transitional Epithelium
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Keratinized Epithelium
Keratinized Epithelium
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Connective Tissue Proper
Connective Tissue Proper
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Extracellular Matrix
Extracellular Matrix
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Holocrine Glands
Holocrine Glands
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Connective Tissue
Connective Tissue
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Epithelial Tissue
Epithelial Tissue
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Neurological Tissue
Neurological Tissue
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Muscle Tissue
Muscle Tissue
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Simple Squamous Epithelium
Simple Squamous Epithelium
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Ciliated Simple Columnar Epithelium
Ciliated Simple Columnar Epithelium
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Nonciliated Simple Columnar Epithelium
Nonciliated Simple Columnar Epithelium
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Study Notes
Levels of Organization in the Human Body
- Chemical Level: Atoms and molecules (e.g., water, glucose)
- Cellular Level: Basic units of life (e.g., muscle cells, nerve cells)
- Tissue Level: Groups of similar cells working together (e.g., epithelial, connective tissues)
- Organ Level: Structures composed of two or more tissue types (e.g., heart, lungs)
- Organ System Level: Groups of organs working together (e.g., digestive system)
- Organism Level: The entire living being (e.g., a human)
Anatomical Positions
- Anterior (Ventral): Toward the front (e.g., chest)
- Posterior (Dorsal): Toward the back (e.g., spine)
- Contralateral: Opposite sides (e.g., right arm and left leg)
- Ipsilateral: Same side (e.g., right arm and right leg)
- Deep: Away from the surface (e.g., bones)
- Superficial: Near the surface (e.g., skin)
- Distal: Farther from the attachment point (e.g., fingers are distal to the shoulder)
- Proximal: Closer to the attachment point (e.g., shoulder is proximal to the fingers)
- Inferior (Caudal): Below (e.g., stomach is inferior to the heart)
- Superior (Cranial): Above (e.g., head is superior to the chest)
- Lateral: Away from the midline (e.g., ears are lateral to the nose)
- Medial: Toward the midline (e.g., nose is medial to the eyes)
Anatomical Regions of the Body
- Abdominal: Abdomen area
- Acromial: Shoulder
- Antebrachial: Forearm
- Antecubital: Front of the elbow
- Mental: Chin
- Nasal: Nose
- Occipital: Back of the head
- Olecranal: Back of the elbow
- Axillary: Armpit
- Brachial: Upper arm
- Buccal: Cheek
- Calcaneal: Heel
- Carpal: Wrist
- Cephalic: Head
- Cervical: Neck
- Coxal: Hip
- Cranial: Skull
- Crural: Shin
- Digits/Phalanges: Fingers and toes
- Dorsum: Back
- Facial: Face
- Femoral: Thigh
- Gluteal: Buttocks
- Inguinal: Groin
- Lower Extremity: Hip to toes
- Lumbar: Lower back
- Mammary: Breast
- Manus: Hand
Body Cavities
- Cranial Cavity: Contains the brain
- Spinal (Vertebral) Cavity: Contains the spinal cord
- Thoracic Cavity: Contains heart and lungs
- Abdominal Cavity: Contains digestive organs
- Pelvic Cavity: Contains reproductive organs, and bladder
- Abdominopelvic Cavity: Combination of abdominal and pelvic cavities
- Dorsal Cavity: Includes cranial and spinal cavities
- Ventral Cavity: Includes thoracic and abdominopelvic cavities
- Diaphragm: Muscle separating thoracic and abdominal cavities
- Mediastinum: Central part of the thoracic cavity
- Pericardial Cavity: Surrounds the heart
- Pleural Cavities: Surround the lungs
- Abdominal Quadrants: Right Upper Quadrant (RUQ), Left Upper Quadrant (LUQ), Right Lower Quadrant (RLQ), Left Lower Quadrant (LLQ)
Difference Between Parietal and Visceral Serous Membranes
- Parietal: Lines cavity walls
- Visceral: Covers organs
Homeostatic Control System Steps
- Stimulus: Change detected in the environment
- Receptor: Detects the stimulus
- Control Center: Processes information and decides response
- Effector: Carries out the response to restore balance
Dehydration Synthesis vs. Hydrolysis
- Dehydration Synthesis: A chemical reaction joining two molecules by removing a water molecule. Builds larger molecules (proteins, carbohydrates, nucleic acids).
- Hydrolysis: The opposite of dehydration synthesis. Breaks down larger molecules into smaller units by adding a water molecule.
Definitions for Mixtures and Measurements
- Solutes: Substances dissolved in a solution (e.g., salt in saltwater)
- Solution: A homogeneous mixture of solute dissolved in a solvent (e.g., sugar in water)
- Colloid: A mixture where particles are dispersed but not dissolved, and they do not settle out (e.g., milk, gelatin)
- Suspension: A heterogeneous mixture with large particles that settle out over time (e.g., sand in water, blood)
Biological Macromolecules
- Lipids: Non-polar molecules used for long-term energy storage, insulation, and cell membrane structure (e.g., triglycerides, phospholipids, steroids)
- Carbohydrates: Provide quick energy and structural support (e.g., monosaccharides, disaccharides, polysaccharides)
- Nucleic Acids: Store and transmit genetic information (e.g., DNA, RNA, ATP)
- Proteins: Perform structural, enzymatic, and regulatory functions (e.g., enzymes, hormones, antibodies)
Protein Denaturation
- The process where a protein loses its three-dimensional structure due to external stress (heat, pH changes, or chemicals). This loss of structure causes the protein to lose its function.
Cellular Structures and Organelles
- Centrioles: Cylinder-shaped structures that organize the mitotic spindle during cell division
- Cytoplasm and Cytosol: Cytoplasm includes all contents within the cell membrane (excluding the nucleus) and the cytosol is the fluid portion of cytoplasm
- Cytoskeleton: Provides structural support, aiding in cell movement, and organizing organelles
- Golgi Apparatus: Modifies, packages, and sorts proteins and lipids for secretion or delivery
- Lysosomes and Peroxisomes: Lysosomes break down waste materials, peroxisomes break down fatty acids and neutralize toxic compounds
- Microvilli: Increase surface area to enhance absorption
- Mitochondria: Generate ATP through cellular respiration
- Nucleus: Control center of the cell, housing DNA
- Nucleolus: Region within the nucleus where ribosomal RNA is synthesized
- Plasma Membrane: Selectively permeable phospholipid bilayer surrounding the cell
- Ribosomes: Site of protein synthesis (free-floating or attached to rough ER)
- Rough Endoplasmic Reticulum (RER): Synthesizes and modifies proteins
- Smooth Endoplasmic Reticulum (SER): Involved in lipid synthesis, detoxification, and calcium storage
Cellular Division
- Interphase: Preparation for cell division
- G1 Phase: Cell growth and normal functions
- S Phase: DNA replication
- G2 Phase: Cell continues to grow, produces proteins, and checks for DNA errors
- Mitotic Phase (M Phase): Cell division
- Prophase: Chromatin condenses, nuclear envelope breaks down, and spindle fibers form.
- Metaphase: Chromosomes align at the metaphase plate.
- Anaphase: Sister chromatids separate.
- Telophase: Chromosomes decondense, nuclear envelopes reform, and spindle fibers disassemble
- Cytokinesis: Cytoplasm divides, resulting in two genetically identical daughter cells
Tissue Organization
- Exocrine Glands: Secrete substances onto epithelial surfaces (ducts)
- Apocrine Glands: Secrete substances by pinching off part of the cell cytoplasm
- Holocrine Glands: Secrete substances by rupturing the entire cell
Common Features of Connective, Epithelial, Neurological, and Muscle Tissues
- Connective Tissue: Provides support, protection, and stores energy. Rich in extracellular matrix (ECM)
- Epithelial Tissue: Covers surfaces, lines cavities, forms glands, tightly packed cells with minimal ECM.
- Neurological Tissue: Transmits electrical impulses, processes information and provides support for neurons
- Muscle Tissue: Responsible for movement (contraction)
Types of Epithelial Tissues
- Simple Squamous: Single layer of flat cells (e.g., lining blood vessels)
- Simple Cuboidal: Single layer of cube-shaped cells (e.g., kidney tubules)
- Simple Columnar: Single layer of tall cells (e.g., lining of the stomach)
- Pseudostratified Columnar: Appears layered, all cells touch the basement membrane (e.g., trachea)
- Nonciliated Simple Columnar: Contains microvilli (e.g., digestive tract)
- Ciliated Simple Columnar: Contains cilia for movement (e.g., bronchi/uterine tubes)
- Stratified Squamous: Multiple layers of flat cells (e.g., skin)
- Stratified Cuboidal: Multiple layers of cube-shaped cells (e.g., sweat glands)
- Stratified Columnar: Multiple layers of columnar cells (e.g., male urethra)
- Transitional: Cells change shape depending on stretch (e.g., urinary bladder)
Components of Connective Tissue
- Cells: Fibroblasts, macrophages, mast cells, adipocytes.
- Extracellular Matrix: Ground substance (gel-like) and protein fibers (collagen, elastic, reticular).
Types of Connective Tissues
- Loose Connective Tissue: Areolar, Adipose, Reticular.
- Dense Connective Tissue: Dense regular, Dense irregular, Elastic.
- Supporting Connective Tissues: Cartilage (hyaline, fibrocartilage, elastic) & Bone
Fluid Connective Tissue
- Blood: Carries oxygen, nutrients, and waste products
- Lymph: Part of the immune system, found in lymphatic vessels
Muscle Tissues
- Skeletal Muscle: Striated, voluntary control, multi-nucleated cells for movement of bones
- Smooth Muscle: Non-striated, involuntary control, single nucleus per cell for moving substances through organs
- Cardiac Muscle: Striated, involuntary control, and has intercalated discs, pumps blood
Nervous Tissue
- Function: Transmits electrical impulses (communication)
- Structure: Composed of neurons (nerve cells) and glial cells (supporting cells)
- Location: Brain, spinal cord, and peripheral nerves
Layers of the Epidermis (Deep to Superficial)
- Stratum Basale: Single layer of cuboidal/columnar cells, stem cells for keratinocytes
- Stratum Spinosum: Several layers of keratinocytes connected by desmosomes
- Stratum Granulosum: 3-5 layers of flattened keratinocytes with keratohyalin granules
- Stratum Lucidum: Thin, translucent layer of dead keratinocytes (only in thick skin)
- Stratum Corneum: 20-30 layers of dead, flattened keratinocytes forming a waterproof barrier
Cells in the Stratum Basale
- Keratinocytes: Produce keratin, constantly divide
- Melanocytes: Produce melanin, protecting from UV radiation
- Tactile (Merkel) Cells: Sensory receptors for light touch
Epidermal Dendritic Cells (Langerhans Cells)
- Immune cells that detect and respond to pathogens.
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Description
Test your knowledge on fundamental biological concepts, including types of reactions, mixtures, and the functions of macromolecules. This quiz covers essential terms and definitions related to anatomy and physiology, providing a comprehensive look at the human body's organization. Challenge yourself and see how well you understand the intricacies of life sciences.