Comprehensive Study Guide: Anatomy & Physiology Final Exam Review (BIO210)

Ch. 1: Introduction to Anatomy & Physiology

1.2 Structural Organization

The human body is organized into hierarchical levels, each with increasing complexity. Understanding these levels is fundamental to the study of anatomy and physiology.

• Chemical Level: Atoms and molecules essential for life.

• Cellular Level: Basic structural and functional units of life.

• Tissue Level: Groups of similar cells performing common functions.

• Organ Level: Structures composed of two or more tissue types.

• Organ System Level: Related organs working together (e.g., skeletal, muscular systems).

• Organismal Level: The complete living being.

1.3 Anatomical Terms

Standard anatomical terminology is used to describe locations and directions in the body. Key terms include:

• Anterior/Posterior: Front/back of the body.

• Superior/Inferior: Above/below a reference point.

• Medial/Lateral: Toward/away from the midline.

• Proximal/Distal: Closer to/farther from the point of attachment.

Ch. 4: Tissues

Definition of Tissues

Tissues are groups of cells with similar structure and function. There are four primary tissue types in the human body.

• Epithelial Tissue: Covers body surfaces, lines cavities, forms glands. Not glandular for this context.

• Connective Tissue: Supports, protects, and binds other tissues. Types include loose, areolar, adipose, reticular, dense regular, irregular, elastic, cartilage.

• Muscle Tissue: Responsible for movement.

• Nervous Tissue: Initiates and transmits electrical impulses.

Ch. 5: Integumentary System

Structure of Skin

• Epidermis: Outer layer, stratified squamous epithelium.

• Dermis: Deeper layer, connective tissue, contains blood vessels, nerves, glands, and hair follicles.

• Hypodermis (subcutaneous): Not part of skin, but anchors skin to underlying tissues.

Functions of Skin

• Protection, sensation, thermoregulation, vitamin D synthesis, excretion.

Skin Color and Glands

• Melanin, carotene, hemoglobin: Contribute to skin color.

• Glands: Sebaceous (oil), sweat (eccrine and apocrine), ceruminous, mammary.

Hair and Nails

• Structure, growth, and function.

Pathology

• Burns (degrees), skin cancer types, wound healing.

Ch. 6: Bones and Skeletal Tissues

Types of Bone and Cartilage Tissues

• Bone Tissue: Compact and spongy bone; recognize their locations and functions.

• Cartilage Types: Hyaline, elastic, fibrocartilage; compare and contrast structure and function.

Bone Development and Growth

• Ossification: Intramembranous and endochondral processes.

• Growth: Longitudinal (length) and appositional (width) growth.

Bone Remodeling and Repair

• Bone remodeling is a continuous process involving osteoblasts and osteoclasts.

• Fracture healing involves hematoma formation, callus formation, and bone remodeling.

Pathology

• Osteoporosis, rickets, osteomalacia.

Ch. 7: The Skeletal System

Axial and Appendicular Skeleton

• Axial Skeleton: Skull, vertebral column, thoracic cage.

• Appendicular Skeleton: Limbs and girdles.

Bone Markings

• Sites of muscle and ligament attachment, joint surfaces, and passages for nerves and blood vessels.

Vertebral Column

• Structure and function, intervertebral discs, curvatures, and common pathologies (herniated disc, scoliosis).

Thoracic Cage

• Ribs, sternum, and their roles in protection and respiration.

Pathology

• Fractures, flat foot, club foot.

Ch. 8: Joints

Classification and Structure

• Structural Types: Fibrous, cartilaginous, synovial.

• Functional Types: Synarthroses (immovable), amphiarthroses (slightly movable), diarthroses (freely movable).

Synovial Joints

• General structure, movements allowed (e.g., hinge, pivot, ball-and-socket).

• Specific movements for major joints (shoulder, hip, knee).

Joint Disorders

• Common injuries: ACL tear, cartilage tear, sprain, dislocation.

• Arthritis types: Osteoarthritis, rheumatoid arthritis, gouty arthritis.

Ch. 9: Muscle and Muscle Tissues

Types of Muscle Tissue

• Skeletal Muscle: Voluntary, striated, multinucleated.

• Cardiac Muscle: Involuntary, striated, intercalated discs.

• Smooth Muscle: Involuntary, non-striated.

Muscle Structure and Function

• Muscle fiber anatomy: Sarcolemma, sarcoplasm, myofibrils, sarcomeres.

• Myofilaments: Actin (thin) and myosin (thick) filaments.

Muscle Contraction

• Excitation-Contraction Coupling: Action potential triggers Ca2+ release, leading to cross-bridge cycling.

• Sliding Filament Theory: Myosin heads bind to actin, pulling filaments past each other.

Muscle Metabolism

• ATP sources: Creatine phosphate, anaerobic glycolysis, aerobic respiration.

Muscle Fatigue and Types of Contractions

• Isometric vs. isotonic contractions.

• Summation, tetanus, recruitment.

Ch. 10: Muscles

Muscle Organization

• Arrangement of fascicles, muscle groups, and their roles in movement.

• Origin, insertion, action, and innervation of major muscles.

Lever Systems

• First, second, and third class levers; recognize lever classes in the body.

Ch. 11: Nervous Tissue

Functions and Organization

• Central and peripheral nervous systems; sensory, motor, and integrative functions.

Neuroglia and Neurons

• Types of neuroglia: Schwann cells, oligodendrocytes, astrocytes, microglia, ependymal cells.

• Neuron structure: Cell body, dendrites, axon, myelin sheath.

Membrane Potentials and Action Potentials

• Resting membrane potential, graded potentials, action potentials.

• Ion channels: Chemically gated, voltage-gated.

Synaptic Transmission

• Neurotransmitters: Acetylcholine, biogenic amines, amino acids, peptides.

• Excitatory and inhibitory postsynaptic potentials (EPSP, IPSP).

Neural Integration

• Summation (temporal, spatial), facilitation, inhibition.

Ch. 12: Central Nervous System

Brain and Spinal Cord Anatomy

• Major regions: Cerebrum, diencephalon, brainstem, cerebellum.

• Gray and white matter organization.

• Ventricles and cerebrospinal fluid (CSF) circulation.

Functional Brain Systems

• Limbic system (emotion, memory), reticular formation (arousal, alertness).

Spinal Cord

• Structure, function, ascending and descending tracts.

• Reflex arcs and integration centers.

Ch. 13: Peripheral Nervous System

Nerves and Ganglia

• Cranial and spinal nerves: Structure, function, and distribution.

• Ganglia: Sensory (dorsal root) and autonomic ganglia.

Reflex Activity

• Types of reflexes: Somatic, autonomic; monosynaptic, polysynaptic.

• Diagnostic value of reflex testing.

Ch. 14: Autonomic Nervous System

Organization and Function

• Sympathetic and parasympathetic divisions: Structure, neurotransmitters, and effects.

• Dual innervation and antagonistic effects.

Visceral Reflexes

• Autonomic reflex arcs, integration centers, and effectors.

Ch. 15: Special Senses

Vision

• Eye anatomy: Layers, chambers, lens, retina, optic nerve.

• Phototransduction: Role of rods and cones, visual pathways.

• Common disorders: Myopia, hyperopia, astigmatism, cataract.

Hearing and Balance

• Ear anatomy: External, middle, inner ear structures.

• Sound conduction and transduction by hair cells.

• Equilibrium: Vestibular apparatus, semicircular canals.

Chemical Senses

• Olfaction (smell): Olfactory epithelium, pathways.

• Gustation (taste): Taste buds, papillae, taste pathways.

Tables

Table: Types of Muscle Tissue (Comparison)

Type	Location	Control	Striations	Key Features
Skeletal	Attached to bones	Voluntary	Yes	Multinucleated, rapid contraction
Cardiac	Heart	Involuntary	Yes	Intercalated discs, rhythmic contraction
Smooth	Walls of hollow organs	Involuntary	No	Spindle-shaped cells, slow contraction

Table: Types of Cartilage

Type	Location	Function
Hyaline	Nose, trachea, articular surfaces	Support, flexibility
Elastic	Ear, epiglottis	Flexibility, shape retention
Fibrocartilage	Intervertebral discs, pubic symphysis	Shock absorption

Table: Types of Synovial Joints and Movements

Joint Type	Example	Movements Allowed
Hinge	Elbow, knee	Flexion, extension
Pivot	Atlas/axis, proximal radioulnar	Rotation
Ball-and-socket	Shoulder, hip	Flexion, extension, abduction, adduction, rotation

Table: Neuroglia in CNS and PNS

Type	Location	Function
Astrocytes	CNS	Support, blood-brain barrier
Oligodendrocytes	CNS	Myelination
Microglia	CNS	Immune defense
Ependymal cells	CNS	CSF production
Schwann cells	PNS	Myelination
Satellite cells	PNS	Support neurons

Key Equations

• Nernst Equation (for membrane potential): $E = \frac{RT}{zF} \ln \frac{[\text{ion outside}]}{[\text{ion inside}]}$

• Ohm's Law (for current flow): $I = V/R$

• Muscle Force (Lever): $\text{Force} \times \text{Lever Arm} = \text{Resistance} \times \text{Resistance Arm}$

Additional info: This guide expands on the review sheet by providing definitions, examples, and tables for comparison, as well as key equations relevant to the covered topics. For exam preparation, focus on understanding concepts, recognizing structures, and applying knowledge to clinical scenarios.