body systems

7. protects your body from infection and injuries you could get from your external environment,the major organs of this system are the skin,hair,nails.
8. delivers oxygen and nutrients to cells and takes away wastes,the major organ of this system is the heart.
10. the system that gives the body shape,the major organs of this system are the bones and testes.
11. breaks nutrients into parts small enough for your body to absorb and use for energy,the major organs of this system are the stomach liver and mouth.

1. attached to bones or internal organs and blood vessels are responsible for movement,the major organ of this system is the cardiac muscles.
2. maintains fluid levels in our body tissues by removing all fluids that leak out of our blood vessels,this system has no major organs.
3. move fresh air into our body while removing waste gases,the major organ of this system is the lungs.
4. transmits signals between the brain and the rest of the body including internal organs,the major organs of this system are the brain and spinal cord.
5. to reproduces sperm and egg cells,the major organs of this system are the ovaries and testies.
6. made up of all the body's different hormones, regulates all biological processes,the major organs of this system are the thyroid and adrenal glands.
9. maintain the volume and composition of body fluids within normal limits,the major organs of this system are the bladder and kidneys