11 Organ Systems

  1. Integumentary System
    • forms the external body covering¬†
    • protects deeper tissues from injury
    • synthesizes vitamin D
    • houses cutaneous (pain,pressure) receptors and sweat and oil glands
  2. Skeletal System
    • protects and supports body organs
    • provides a framework the muscles use to cause movement
    • blood cells are formed within bones
    • bones store minerals
  3. muscular system
    • allows manipulation of the environment, locomotion, and facial expression (allows us human motion)
    • maintains posture and produces heat
  4. nervous system
    • the fast-acting control system of the body (instantaneous reactions)
    • responds to internal and external changes by activating appropriate muscles and glands
  5. endocrine system
    • glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use (metabolism) by body cells
    • hormones tend to affect other hormones
  6. lymphatic system/immunity
    • picks up fluid leaked from blood vessels and returns it to blood
    • houses white blood cells (lymphocytes)
    • immune response mounts attacks against foreign substances
    • disposes of debris in the lymphatic system
  7. digestive system
    • breaks down food into absorbable units that enter the blood for distribution to body cells
    • indigestible foodstuffs are eliminated as feces
  8. male and female reproduction systems
    • overall function: production of offspring
    • testes: produce sperm and male sex hormone
    • male ducts and glands aid in delivery of sperm to the female reproductive tract
    • ovaries: produce eggs and female sex hormones
    • remaining female structures serve as sites for fertilization and development of the fetus
Card Set
11 Organ Systems
organ systems and brief descriptions