midterm 2

Question 1

what hormones are secreted by the adrenal glands?

Answer 1

mineralocorticoids, glucocorticoids, androgens

Question 2

___ is an extension of the sympathetic nervous system that secretes hormones

Answer 2

the adrenal medulla

(inner part of adrenal gland)

Question 3

what is the adrenal medulla associated with? (inner part of adrenal gland)

Answer 3

• associated with sympathetic ANS
• releases epi and norepi
  chromaffin cells
  -

Question 4

where is melatonin released from?????

Answer 4

pineal gland near the brain

Question 5

what are the 4 cells of the pancreas (endocrine part) and what do they do????

Answer 5

• alpha: secrete glucagon
• beta: secrete insulin
• delta: secrete somatostatin
• f cells: secrete p. polypeptide

Question 6

which cells of the pancreas secrete insulin???

Answer 6

B cells

Question 7

where is the body’s biological clock located?

Answer 7

the hypothalamus

Question 8

which hormone is involved in these factors: blood pressure, potassium ion homeostasis, hydrogen ion excretion

Answer 8

aldosterone

released by adrenal gland

Question 9

hyperglycemia will stimulate:

Answer 9

secretion of insulin by beta cells of pancreas

Question 10

hypoglycemia stimulates:

Answer 10

alpha cells to release glucagon

Question 11

what does somatostatin and pancreatic polypeptides do

Answer 11

somatostatin: inhibits secretion of glucagon and insulin

p.p.: inhibits secretion of somatostatin

Question 12

how much time of UV exposure is needed for vit D synthesis?

Answer 12

10-15 min

Question 13

examples of second messengers

Answer 13

cAMP, DAG, CA2+