The language of anatomy, levels of organization and homeostasis

Atoms, bonds, water, pH and the molecules of life

The plasma membrane, transport, organelles, division and protein synthesis

Epithelial, connective, muscle and nervous tissue — and how tissues repair

Skin layers, hair, nails, glands, functions — and burns & skin cancer

Bone structure, histology, ossification, remodeling and fractures

Skull, vertebral column, thoracic cage, girdles and limbs

Classification of joints, synovial joint structure, movements and injuries

Skeletal muscle structure, excitation–contraction coupling, energy and smooth muscle

How muscles work together, how they're named, and the major muscles of the body

Organization, neurons and glia, membrane potentials, action potentials and synapses

Brain regions, cortex, diencephalon, brain stem, cerebellum, protection and the spinal cord

Sensory receptors, nerves, the 12 cranial nerves, spinal nerves and plexuses, reflexes

Sympathetic vs parasympathetic, neurotransmitters, receptors and control

Vision, smell, taste, hearing and equilibrium

Hormones, receptors, feedback control and the major endocrine glands

Plasma, red and white blood cells, platelets, hemostasis and blood typing

Anatomy, blood flow, conduction, the ECG, the cardiac cycle and cardiac output

Vessel structure, blood pressure, capillary exchange and the major circulatory routes

Lymph vessels, lymph flow, lymph nodes, spleen, thymus, tonsils and MALT

Barriers, inflammation, antigens, T and B cells, antibodies and immune disorders

Airways, lungs, ventilation, gas exchange, gas transport and control of breathing

GI tract wall, mouth to anus, accessory organs and chemical digestion

Nutrients, cellular respiration, absorptive and postabsorptive states, and body temperature

Kidney anatomy, the nephron, filtration, reabsorption, secretion and micturition

Body water compartments, water and sodium balance, electrolytes, buffers and acid–base disorders

Male and female anatomy, meiosis, gametogenesis, hormones and the ovarian and uterine cycles

Fertilization, implantation, the placenta, embryonic and fetal development, labor and lactation

Genes and alleles, Mendelian crosses, inheritance patterns, sex-linked traits and chromosomal disorders