endocrine

Question 1

what are hormones?

Answer 1

Hormones are chemical signals

Question 2

what does the endocrine system consist of?

Answer 2

Endocrine cells which are hormone-secreting cells.
Endocrine glands which are hormone-secreting organs.
Specific target cells respond to specific hormones.

Question 3

what are exocrine glands?

Answer 3

produce nonhormonal substances (examples: sweat, saliva)
- ducts carry secretion to membrane surface

Question 4

what are endocrine glands?

Answer 4

produce hormones
- lack ducts

Question 5

what are endocrine glands?

Answer 5

pituitary, thyroid, parathyroid, adrenal, and pineal glands

Question 6

true or false, the hypothalamus is a neuroendocrine organ?

Answer 6

true

Question 7

what organs have exocrine and endocrine functions?

Answer 7

Pancreas, gonads, placenta

Question 8

what are other tissues and organs that produce hormones?

Answer 8

Adipose cells, thymus, and cells in walls of small intestine, stomach, kidneys, and heart

Question 9

true or false, The endocrine system and the nervous system are structurally, chemically, and functionally related

Answer 9

true

Question 10

what do neurosecreotry cells do?

Answer 10

Neurosecretory cells secrete hormones into the blood.

Question 11

what is the dual role of epinephrine?

Answer 11

Chemicals such as epinephrine (adrenaline) serve as both hormones of the endocrine system and signals in the nervous system.

Question 12

what are growth factors?

Answer 12

molecules that stimulate cell proliferation