Organ system
Organ System
Function
Note: Some functions might overlap between multiple organ systems
Organs
Note: Pay attention & research the ones you are not familiar with. Also, some organs might be found in multiple organ systems
Systems of Protection, Support, & Movement
1) Integumentary System
Protection, thermoregulation, vitamin D synthesis, cutaneous (skin) secretion.
Hair, nails, skin, & cutaneous glands
2) Skeletal System
Movement, support, protection of internal viscera, electrolyte & acid-base balance, blood formation.
Bones, bone marrow, cartilages & ligaments
3) Muscular System
Movement, stability, heat production, control of body openings, communication.
Skeletal, smooth, & cardiac muscles & tendons
Systems of Fluid Transport
4) Cardiovascular System
Fluid, electrolyte & acid-base balance. Distribution of oxygen, wastes, nutrients, hormones, heat, immune cells & antibodies.
Heart & blood vessels (arteries, veins, capillaries, & the great vessels such as the aorta & venae cavae)
5) Lymphatic System
Detection of pathogens, production of immune cells, defense against disease & recovery of excess tissue fluid.
Lymphatic vessels, trunks, & ducts, lymph nodes, thymus, spleen, Peyer's patches, & tonsils
Systems of Internal Communication & Control
6) Nervous System
Rapid internal communication, coordination, motor control & sensation.
Brain, spinal cord, nerves, & ganglia
7) Endocrine System
Slow internal chemical communication & coordination, hormone production.
Pineal gland, pituitary gland, thyroid gland, parathyroid glands, adrenal glands, thymus, pancreas, ovaries & testes
Systems of Intake & Output
8) Urinary System
Elimination of wastes, stimulation of red blood cell formation, regulation of blood volume & pressure, control of fluid, acid-base & electrolyte balance, detoxification & micturition.
Kidneys, ureters, urinary bladder & urethra
9) Respiratory System
Acid-base balance, speech, absorption of oxygen & discharge of carbon dioxide.
Nose, pharynx, larynx, trachea, bronchi, alveoli, & lungs
10) Digestive System
Nutrient breakdown & absorption, & defecation.
Teeth, tongue, salivary glands, pharynx, esophagus, stomach, small & large intestines, liver, gall bladder & pancreas
Systems of Reproduction
11A) Male Reproductive System
Secretion of sex hormones, production & delivery of sperm.
Testes, vas deferens, epididymides, spermatic ducts, seminal vesicles, bulbourethral glands, prostate gland, scrotum, & penis
11B) Female Reproductive System
Secretion of sex hormones, production of eggs, site of fertilization & fetal development, fetal nourishment, birth, & lactation.
Ovaries, uterine/fallopian tubes, uterus, vagina & mammary glands