11 Organ Systems

Integumentary

Skin, hair, nails; protection, vitamin D synthesis, cutaneous receptors

Skeletal

Bones, joints; support, protection, muscle attachment, blood cell formation, mineral storage.

Reproductive Male

Male (testes, prostate, ductus deferens, scrotum, penis)

Muscular

Skeletal muscles; locomotion, posture maintenance, heat production.

Nervous

Brain, spinal cord, nerves, sensory receptors; fast-acting control system.

Endocrine

Glands (pituitary, pineal, thyroid, thymus, adrenal, pancreas, ovaries, testes); hormone secretion regulating growth, reproduction, and nutrient use.

Cardiovascular

Heart, blood vessels; transport of blood, oxygen, carbon dioxide, nutrients, and wastes.

Lymphatic/Immunity

Lymph nodes, lymphatic vessels, thymus, spleen, red bone marrow, thoracic duct; fluid recovery, debris disposal, white blood cell housing.

Respiratory

Nasal cavity, pharynx, larynx, trachea, bronchi, lungs; oxygen supply, carbon dioxide removal, gas exchange.

Digestive

Oral cavity, esophagus, stomach, liver, small/large intestine, rectum, anus; food breakdown, nutrient absorption, waste elimination.

Urinary

Kidneys, ureters, urinary bladder, urethra; nitrogenous waste elimination, fluid, electrolyte, and acid-base balance.

Reproductive Female

and female (ovaries, uterine tubes, uterus, vagina, mammary glands); offspring production and hormone secretion.