Endocrinology Lecture 2

Question 1

what do somatotrophs do?

Answer 1

release hGH

Question 2

what is somatostatin?

Answer 2

growth hormone inhibiting hormone

Question 3

growth hormone can also have an impact on

Answer 3

blood glucose

Question 4

what is a somatomedin?

Answer 4

insulin like growth factor

Question 5

where are IGF’s made?

Answer 5

liver, skeletal muscle, cartilage, bone

Question 6

what do IGF’s do?

Answer 6

increase amino acid uptake by cells
increase lipolysis

decrease glucose uptake of body cells
decrease break down of proteins

Question 7

what hormone can break down protein?

Answer 7

cortisol in excess

Question 8

what can trigger release of GHRH?

Answer 8

low blood sugar

Question 9

what will cause a release of GHIH?

Answer 9

high blood sugar

Question 10

how would stress impact hGH?

Answer 10

increase (need sugar to go to the brain and body)

Question 11

what do sex hormones promote?

Answer 11

growth hormone

Question 12

which cells carry out PT activity?

Answer 12

chief cells

Question 13

what are the functions of PTH?

Answer 13

increase blood calcium level
increases formation of calcitriol (active form of vitamin D)
decrease blood phosphate level

Question 14

is hypothalamus part of the parathyroid pathway?

Answer 14

no

Question 15

which cells make calcitonin in the thyroid?

Answer 15

parafollicular cells

Question 16

where is pancreas located?

Answer 16

retroperitoneal

Question 17

what do beta cells produce?

Answer 17

insulin

Question 18

what do alpha cells produce?

Answer 18

glucagon

Question 19

what is the role of the pineal gland?

Answer 19

melatonin

Question 20

what does atrial natriuretic hormone do?

Answer 20

decrease blood volume

-dump sodium and water into the urine