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 by working through key structures like the sternocleidomastoid, erector spinae group, and deep stabilizers such as the multifidus and rotatores. This pack covers facial expression muscles, scalene and suboccipital groups, and the logic behind anatomical naming conventions — giving you everything you need to connect muscle structure to function and movement.
Blood Composition and Function
Break down the cellular and chemical makeup of blood, from plasma proteins like albumin and their role in oncotic pressure to the oxygen-carrying mechanics of hemoglobin. This pack covers erythrocytes, the five types of leukocytes, platelet-driven hemostasis, and hematocrit values used to diagnose anemia and polycythemia — everything you need for a thorough understanding of blood composition and function.
Blood Vessels and Circulation
Trace the full path of blood through the pulmonary and systemic circuits while breaking down how arteries, veins, and capillaries are each built for their specific roles. This pack covers arterial wall structure, capillary exchange, venous return mechanisms, and the relationship between vessel radius and resistance described by Poiseuille's law — everything you need for circulatory system exams.
Brain Structures and Functions
Map the brain from cortex to brainstem as this study pack walks through the functions of all four cerebral lobes, the limbic system's role in memory and emotion, and the brainstem's control of heart rate and respiration. You'll also cover the thalamus as a sensory relay, the cerebellum's motor coordination loop, and key cortical landmarks like Broca's area.
Cardiac Cycle
Trace every phase of the cardiac cycle — from passive ventricular filling and atrial contraction through isovolumetric contraction, semilunar valve opening, and ejection — with clear coverage of valve mechanics, heart sounds S1 and S2, stroke volume, cardiac output, and the Wiggers diagram that ties pressure, volume, and ECG changes together.
Digestive System Organization
Trace the full organization of the digestive system, from the four-layered GI tract wall — mucosa, submucosa, muscularis externa, and serosa — to the roles of accessory organs like the liver, pancreas, and gallbladder. This pack covers nutrient absorption in the small intestine, water reabsorption in the large intestine, and the hormonal coordination of digestion through secretin and CCK, plus the enteric nervous system's independent control of motility and secretion.
Gas Exchange and Respiratory Physiology
Trace the full journey of oxygen and carbon dioxide across the respiratory membrane, from partial pressure gradients in the alveoli to hemoglobin binding, the oxyhemoglobin dissociation curve, and the Bohr effect. This pack covers CO₂ transport as bicarbonate and carbaminohemoglobin, V/Q ratios, and the structural factors — membrane thickness, surface area — that maximize diffusion efficiency.
Heart Anatomy
Trace the structural and functional design of the heart from its four chambers and dividing septa to the pericardial layers, myocardium, and valve mechanics. This pack covers one-way blood flow through the pulmonary and systemic circuits, coronary artery supply, and the conduction pathway from the sinoatrial node through the Purkinje fibers — everything you need for a thorough exam review.
Homeostasis and Feedback Loops
Trace the body's self-regulating systems from receptor to effector as you master negative and positive feedback loops, including blood glucose control via insulin and glucagon, temperature regulation through sweating and shivering, and oxytocin-driven childbirth contractions. This pack also connects homeostatic breakdown to real disease states like diabetes mellitus, making it ideal for students preparing for A&P exams.
Microscopic Anatomy of the Kidney
Trace the microscopic architecture of the kidney from the glomerulus and Bowman's capsule through the proximal convoluted tubule, loop of Henle, and collecting duct. This pack covers filtration, countercurrent multiplication, hormonal regulation by aldosterone and ADH, and the role of the juxtaglomerular apparatus — giving you a thorough breakdown of how nephrons filter blood and concentrate urine.
Muscle Tissue and Motion
Break down the mechanics of muscle contraction from the ground up — covering skeletal, cardiac, and smooth tissue types, sarcomere structure, and the sliding filament theory. Trace how acetylcholine triggers calcium release at the neuromuscular junction, enabling myosin cross-bridge cycling, and see how fibers, fascicles, and tendons connect muscle to bone.
Neurons and Action Potentials
Trace the full journey of a nerve signal — from the resting membrane potential of −70 mV through depolarization, repolarization, and afterhyperpolarization — with this study pack on neurons and action potentials. Master the roles of voltage-gated Na⁺ and K⁺ channels, the sodium-potassium pump, refractory periods, and saltatory conduction along myelinated axons to ace your A&P exam.
Reproductive System Anatomy
Trace the full anatomy of male and female reproductive systems, from spermatogenesis in the seminiferous tubules and sperm transport through the epididymis and vas deferens to oogenesis in the ovaries and the role of the uterine tubes in fertilization. This pack covers accessory gland functions, the pampiniform plexus heat exchange mechanism, and hormonal regulation via the hypothalamic–pituitary–gonadal axis — everything you need to master reproductive anatomy and physiology.
Skeletal Muscle Contraction
Trace the full sequence of skeletal muscle contraction from acetylcholine release at the neuromuscular junction to the sliding filament mechanism, ATP-driven power strokes, and calcium-regulated relaxation. This pack covers troponin-tropomyosin dynamics, motor unit recruitment, wave summation, tetanus, and rigor — giving you the mechanistic detail needed to master contraction physiology from start to finish.
The Lymphatic and Immune Systems
Trace the full sweep of the body's defense network — from lymphatic capillaries and major lymphoid organs like the thymus and spleen to barrier defenses, innate responses, and adaptive immunity. This pack covers clonal selection, humoral versus cell-mediated immunity, memory cell function, and immune dysregulation, giving you everything needed to master both structure and mechanism before your next exam.
The Peripheral and Autonomic Nervous Systems
Trace the full architecture of the peripheral and autonomic nervous systems, from somatic motor and sensory pathways to the sympathetic fight-or-flight and parasympathetic rest-and-digest divisions. This pack covers preganglionic and postganglionic fiber arrangements, neurotransmitter release at target organs, dual innervation, and the enteric nervous system's independent control of digestion — everything you need to master ANS function for your A&P exam.
Urinary System Anatomy
Trace the complete path of urine formation from blood filtration at the glomerulus and Bowman's capsule through the proximal convoluted tubule, loop of Henle, and distal convoluted tubule to the collecting ducts and renal pelvis. This pack covers kidney cortex and medulla organization, nephron structure, and how peristalsis moves urine through the ureters to the bladder for voluntary and involuntary sphincter-controlled micturition.