This preview shows page 1. Sign up to view the full content.
Unformatted text preview: * alows movement, protects organs, supports muscles * movement is at the joints Skin, * pores can open up and sweat out body hear * blood vessels near the surface can shrink or expand to control temperature * skin breaks can let new germs into the body Younger = shorter breathes and less air (adults have most breathe) * Air we breathe is 21% oxygen, when we exhale 16% of the air is still oxygen Your nervous system, circulatory, and skin control your temperature....
View Full Document
- Spring '11