endocrine lectures

Question 1

hormone definition

Answer 1

to excite

Question 2

endocrine vs exocrine definition

Answer 2

endocrine- glands pour secretion into blood stream
exocrine- glands pour secretion through a duct to site of action

Question 3

example of exocrine

Answer 3

pancreas - amylase and lipase

Question 4

example of endocrine

Answer 4

thyroid, adrenal, beta cells of pancreas

Question 5

endocrine hormone action

Answer 5

blood-borne , acting at distant sites

Question 6

paracrine hormone action

Answer 6

acting on adjacent sites

Question 7

autocrine hormone action

Answer 7

feedback on same cell that secreted hormone

Question 8

2 types of hormones

Answer 8

water-soluble and fat-soluble.

Question 9

differences between water-soluble and fat-soluble hormones

Answer 9

water-soluble: unbound transport, bind to surface receptor, short half-life, fast clearance
fat-soluble: protein bound transport, diffuse into cell, long half-life , slow clearance

Question 10

example of water-soluble hormones.

Answer 10

peptides and monoamines (stored in vesicles)

Question 11

examples of fat-soluble hormones

Answer 11

thyroid hormone, steroids (synthesised on demand)