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Chapter 14 - Endocrine System. Endocrine Vs Nervous System. Both systems enable cells to communicate with others by using chemical messengers.
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Endocrine Vs Nervous System • Both systems enable cells to communicate with others by using chemical messengers. • The endocrine system uses chemical messengers called hormones that are transported by the circulatory system (blood). They act on target cells that may be anywhere in the body.
CONT’D • The endocrine system is slower • The chemical messengers used by the nervous system are neurotransmitters. Neurotransmitters travel across a narrow space (the synaptic cleft) and bind to receptors on the target cell.
Two Kinds of Hormones • Peptide Hormones
CONT’D • Steroid Hormones
http://andthendougsaid.com/biology/activity/activity.htm • http://bcs.whfreeman.com/thelifewire/content/chp42/4202002.html • http://bcs.whfreeman.com/thelifewire/content/chp42/4202003.html