6th Chap 7 Vocab

4. A chemical that affects growth and development
6. An organ that produces and releases chemicals either through ducts or into the bloodstream
8. A muscle that is under conscious control.
12. A body tissue that contracts, or shortens, making body parts move.
14. The inner framework made up of all the bones of the body

1. A muscle that is not under conscious control
2. The reaction of a person's body to potentially threatening, challenging, or disturbing events.
3. A body tissue that carries electrical messages back and forth between the brain and other parts of the body.
5. Strong connective tissue that holds bones together in movable joints
7. The condition in which an organism's internal environment is kept stable in spite of changes in the external environment.
9. A connective tissue that is more flexible than bone and that protects the ends of bones and keeps them from rubbing together
10. The outer layer of the skin
11. Structure in the dermis of the skin from which a strand of hair grows
13. A place in the body where two bones come together