Anatomy & Physiology
Study Anatomy & Physiology with study guides, quizzes, and flashcards covering the nervous system, cardiac cycle, and more.
Topics
Axial Muscles of the Head Neck and Back
Master the axial muscles of the head, neck, and back — from the masseter and pterygoids driving mandible movement to the erector spinae and transversospinalis groups stabilizing the vertebral column.
Blood Composition and Function
Break down the composition and functions of blood, from plasma proteins like albumin and fibrinogen to the five leukocyte types, hemoglobin-based oxygen transport, platelet-driven hemostasis, and hematopoiesis in red bone marrow.
Blood Vessels and Circulation
Trace blood through the body's complete circulatory network — from high-pressure aortic flow through the three arterial tunics, across capillary exchange zones, and back via valve-assisted venous return — while mastering how vasodilation and vasoconstriction regulate pressure throughout.
Brain Structures and Functions
Map the brain's major divisions — cerebrum, cerebellum, brainstem, and diencephalon — and master how structures like the thalamus, hippocampus, and amygdala handle sensory relay, memory, and emotion. Covers cortical lobes, brainstem autonomic functions, and cerebellar motor coordination.
Cardiac Cycle
Trace the cardiac cycle from diastole through systole, covering the five key events, pressure-driven valve mechanics, S1 and S2 heart sounds, stroke volume calculation, and how to read a Wiggers diagram.
Digestive System Organization
Trace the full length of the GI tract from mouth to anus, covering the four wall layers, accessory organ roles, and how villi and enteroendocrine hormones like CCK and secretin coordinate digestion and absorption.
Gas Exchange and Respiratory Physiology
Trace the full path of gas exchange from alveolar diffusion to blood transport, covering partial pressure gradients, Dalton's Law, the six-layer respiratory membrane, hemoglobin binding, and the Bohr effect — everything you need to master respiratory physiology.
Heart Anatomy
Trace the structure and function of the heart from its four chambers and valve mechanics to the pericardial layers, coronary circulation, and the conduction pathway from the SA node through the Purkinje fibers.
Homeostasis and Feedback Loops
Master the core mechanisms of homeostasis — including negative and positive feedback loops, receptor-control center-effector pathways, and real-world examples like blood glucose regulation and uterine contractions — essential for understanding how the body maintains internal balance and.
Microscopic Anatomy of the Kidney
Trace the microscopic architecture of the kidney from the glomerulus and filtration membrane through the proximal tubule, loop of Henle, and juxtaglomerular apparatus — covering how each structure drives filtration, reabsorption, and urine concentration.
Muscle Tissue and Motion
Trace the full mechanics of muscle contraction — from the three tissue types and sarcomere structure to the sliding filament mechanism, neuromuscular junction, and slow- vs. fast-twitch fiber differences — in one focused study pack.
Neurons and Action Potentials
Trace the full life cycle of an action potential — from resting membrane potential and the sodium-potassium pump to depolarization, repolarization, afterhyperpolarization, and saltatory conduction — so you can confidently explain every phase and the refractory period on your next exam.
Reproductive System Anatomy
Trace the full anatomy of both reproductive systems — from spermatogenesis in the seminiferous tubules and the sperm duct pathway to oogenesis, ovulation, and implantation — plus the GnRH–FSH–LH axis driving it all.
Skeletal Muscle Contraction
Trace the full cycle of skeletal muscle contraction — from acetylcholine release at the neuromuscular junction and calcium-triggered tropomyosin shifting to cross-bridge power strokes, SERCA-driven relaxation, and how motor unit recruitment leads to summation and tetanus.
The Lymphatic and Immune Systems
Trace the full sweep of immune defense — from lymph node filtration and barrier secretions like lysozyme to PRR-triggered innate responses, MHC-mediated antigen presentation, and how B cells, cytotoxic T cells, and immunological memory define adaptive immunity.
The Peripheral and Autonomic Nervous Systems
Trace the full organization of the peripheral and autonomic nervous systems — from somatic and visceral divisions to sympathetic fight-or-flight and parasympathetic rest-and-digest pathways, preganglionic and postganglionic neuron chains, and key neurotransmitters like norepinephrine and.
Urinary System Anatomy
Trace the full path of filtration through the urinary system, from glomeruli and nephron tubules to the renal pelvis, ureters, and urethra, covering key structures like the juxtaglomerular apparatus, loops of Henle, and the renin-pressure regulation mechanism.