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Health Unit 2
Chapter 2 lesson 4
| Term | Definition |
|---|---|
| heredity | passing of traits from parent to child |
| environment | all the things that surround you every day |
| endocrine system | sends messages around the body in the form of chemicals called hormones |
| hormones | travel to other parts of the body and pass on messages that cause things to happen |
| glands | groups of specialized cells that produce hormones |
| pituitary glands | "master gland"; sends out hormones that tell the other glands what to do. |
| hypothalamus | the real control master; it tells the pituitary gland when to release its hormones |
| cartilage | soft, rubbery material that bends instead of breaking: bones are not fully developed until 25 yrs of age |