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Flashcards in Hormones Deck (22)
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1
Q

What human growth hormones are released by the hypothalamus?

A
  • Growth hormone releasing hormone

- growth hormone inhibiting hormone

2
Q

What cells in the anterior pituitary gland secretes growth hormones?

A

somatotrophs

3
Q

What hormone do somatotroph cells secrete?

A

Human growth hormone

4
Q

What are the human growth hormone target tissues?

A

Liver, muscle, cartilage, bone

5
Q

What does hGH stimulate in its target cells?

A

Insulin growth factors

6
Q

What are the effects of insulin growth factors?

A
  • Growth of body cells
  • protein synthesis
  • tissue repair
  • elevation of blood glucose levels
7
Q

What are stimuli for growth hormone releasing hormone?

A
  • hypoglycemia
  • deep sleep
  • decreased fatty acids and increased amino acids
  • BEING LAZY
8
Q

What are stimuli for growth hormone inhibiting hormone?

A
  • hyperglycemia
  • REM sleep
  • increased fatty acids and decreased amino acids
  • obesity
  • LOW thyroid hormones
  • high hGH
9
Q

What hypothalamic hormone stimulates FSH secretion in the anterior pituitary gland?

A

Gonadotrophin releasing hormone

10
Q

What cells in the anterior pituitary gland secrete FSH?

A

gonadotrophs

11
Q

What hormone do gonadotrophs secrete?

A

Follicle stimulating hormone (FSH)

12
Q

What are the target tissues for the follicle stimulating hormone (FSH)

A

testes and ovaries

13
Q

What effect does FSH have in the ovaries of women?

A
  • stimulates secretion of estrogen

- initiates formation of follicles within ovaries

14
Q

What effect does FSH have in the testes of men?

A
  • stimulates sperm production
15
Q

What hypothalamic hormone is for the lutinizing hormone?

A

Gonadotroph releasing hormone (GnRH)

16
Q

What cell does the gonadotroph relasing hormone stimulate in the anterior pituitary gland?

A

gonadotrophs

17
Q

What tropic hormone is secreted by gonadotrophs?

A

Luteinizing hormone

18
Q

What are the target tissues for the luteinizing hormone?

A

testes and ovaries

19
Q

What does LH stimulate in females?

A
  • secretion or estrogen and progesterone

- ovulation

20
Q

What does LH stimulate in males

A
  • secretion of testosterone
21
Q

What hypothalamic hormones stimulates the secretion of prolactin?

A
  • Prolactin releasing hormone (PRH)

- prolactin inhibiting hormone (PIH or dopamine)

22
Q

What anterior pituitary cells does PRH and PIH stimulate

A

lactotrophs