Endocrinology Lecture 2 Flashcards
(20 cards)
what do somatotrophs do?
release hGH
what is somatostatin?
growth hormone inhibiting hormone
growth hormone can also have an impact on
blood glucose
what is a somatomedin?
insulin like growth factor
where are IGF’s made?
liver, skeletal muscle, cartilage, bone
what do IGF’s do?
increase amino acid uptake by cells
increase lipolysis
decrease glucose uptake of body cells
decrease break down of proteins
what hormone can break down protein?
cortisol in excess
what can trigger release of GHRH?
low blood sugar
what will cause a release of GHIH?
high blood sugar
how would stress impact hGH?
increase (need sugar to go to the brain and body)
what do sex hormones promote?
growth hormone
which cells carry out PT activity?
chief cells
what are the functions of PTH?
increase blood calcium level
increases formation of calcitriol (active form of vitamin D)
decrease blood phosphate level
is hypothalamus part of the parathyroid pathway?
no
which cells make calcitonin in the thyroid?
parafollicular cells
where is pancreas located?
retroperitoneal
what do beta cells produce?
insulin
what do alpha cells produce?
glucagon
what is the role of the pineal gland?
melatonin
what does atrial natriuretic hormone do?
decrease blood volume
-dump sodium and water into the urine
