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OS --> Functions
Quiz yourself on functions by viewing the name of the Organ Systems first.
| Organ System | Major Functions | Major Organs |
|---|---|---|
| Skeletal System | Provides support for the body, protect delicate internal organs, and to provide attachment sites for organs. | bones, cartilage, tendons, ligaments |
| Muscular System | Provides movement. | Skeletal muscles and smooth muscles (walls of hollow organs) |
| Circulatory (Cardiovascular) System | Transports nutrients, gases, hormones, and waste through the body. | heart, blood vessels, blood |
| Nervous System | The "control center" of the body - relays electrical signals throughout the body | brain, spinal cord, peripheral nerves |
| Respiratory System | Provides gas exchange between blood and environment. | nose, trachea, lungs |
| Digestive System | Breaks down and absorbs nutrients | mouth, esophagus, duodenum, stomach, pancreas, liver, gall bladder, large and small intestines, cecum, rectum, anus |
| Urinary System | Filters out cellular wastes, toxins, and excess water or nutrients | kidneys, ureters, bladder, urethra |
| Endocrine System | Relays chemical messages (via hormones) through the body. | hypothalamus, pineal, pituitary, adrenal, pancreas, thyroid |
| Reproductive System | Manufactures cells that allow reproduction | Female: ovaries, uterus, vagina, and mammary glandsMale: testes, seminal vesicles, penis |
| Lymphatic and Immune Systems | Destroys and removes invading microbes and viruses from the body.Removes fat. Drains fluid, returning it back to the blood. | Lymph, lymph nodes, lymphatic vessels, spleen, thymus gland. |
| Integumentary System | Protects against environmental hazards, helps regulate body temperature, and detects sensory information | skin, hair, sweat glands, nails |