anterior pituitary

Question 1

what does the paraventricular nucleus release to the anterior pituitary

Answer 1

• CRH (corticotropin releasing hormones)
  CRH stimulates a corticotrope, releasing ACTH (adrenocorticotropic hormone)
• TRH (thyrotropin releasing hormones), stimulates a thyrotrope, releasing TSH (thyroid stimulating hormone)

Question 2

what is released to the anterior pituitary from the arcuate nucleus

Answer 2

• growth hormone releasing hormone, simulates a somatotrope, releasing GH
• PIH (dopamine) - inhibiting a lactotrope, so prolactin release is inhibited

Question 3

what is released to the anterior pituitary from the pre-optic nucleus

Answer 3

GnRH (gonadotropin releasing hormone), stimulates the gonadotrope to release FSH and LH

Question 4

what is the growth hormone inhibiting hormone

Answer 4

somatostatin

Question 5

what stimulates CRH release (leads to ACTH release)

Answer 5

fever
hypoglycaemia
stress

Question 6

what stimulates the release of TSH

Answer 6

cold temp
pregnancy

Question 7

what can stimulate growth hormone releasing hormone

Answer 7

hypoglycaemia
high levels of amino acids in the blood
low fatty acid levels in the blood
exercise