Includes heart, blood, and blood vessels.

Consists of muscles, bones, and joints.

Includes the tongue, esophagus, stomach, liver, pancreas, gall bladder, small intestine, large intestine, rectum, and anus.

Comprises the layers of the skin.

Comprises nose, pharynx, trachea, bronchus, bronchioles, lungs, and alveoli.

Consists of the male and female reproductive organs.

Includes lymph glands, vessels, lymph, lymphocytes, T and B cells.

Involves glands such as the pituitary, hypothalamus, pineal, parathyroid, thyroid, adrenals, pancreas, gonads, ovaries, testes, and their hormones.

Involves the brain, spinal cord, and nerves, including sensory systems like the eye and ear.

Comprises the kidneys, ureters, bladder, and urethra.

Refers to smell, taste, vision, equilibrium, and hearing.