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ch 11
endocrine glands and hormone action
| Question | Answer |
|---|---|
| endocrine glands | secretes hormones directly into blood- slower but longer lasting |
| exocrine glands | ducts- NOT in endocrine system |
| hormones | responsible for communication, control, and last longer than nerve impulses, slower but longer lasting |
| nervous system | faster and short term control |
| nonsteroid hormones (1st messengers) | whole proteins- shorter chains of amino acids- bind to receptors on target cell triggering 2nd messengers to affect cells activities |
| steroid hormones | slower than nonsteroid- work according to second messenger system- |
| primary effects of steroid hormones | produced by binding to receptors in target cells nucleus and act on DNA to change cell activities |
| secondary effects of steroid hormones | steroid hormones bind to membrane receptors to rapidly trigger functional changes in target cell |