Physiology 3120 Lecture 3: Physiology 3120 - Exam 3 study notes (pt.1)
23 Dec 2016
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The endocrine system is a system of communication, as tissues and cells are capable of secreting and responding to hormones. The 2 component communicate via chemical messengers called hormones. Both the endocrine and neural system are communication systems, The neural responses are mediated by electro chemical conduction along nerves, whereas endocrine responses are mediated by chemical messengers called hormones which are released by a specific tissue to bind to specific receptors of other tissues. So, hormones can do all sorts of things regulate body temperature, metabolism, blood glucose etc. So hormones are regulators of physiologic events, they are effective in minute quantities, they are synthesized by endocrine glands and cells. Not all hormones are the same there are 3 main different ways which they can act on types of cells. Endocrine chemical mediators produced in one part of the body which act on a distal part, so they use the blood to travel to the target organ.
