PITUITARY GLAND Flashcards
(15 cards)
What type of tissue is the anterior pituitary derived from?
Glandular tissue
How does the posterior pituitary differ from the anterior pituitary? (2)
The posterior has a neuronal origin and doesn’t actually make hormones
What factors are responsible for regulating anterior pituitary hormone production and release? (2)
- Hypothalamic releasing and inhibiting factors
- negative feedback from peripheral hormones
Where is the hypothalamus located?
Base of the brain
How is the hypothalamus regulated?
- Hormone mediated signals like negative feedback
- Neural inputs mediated by NTs
Where is the pituitary gland located?
Bony cavity in the base of the brain
Name 6 hormones produced in the hypothalamus
- GHRS
- Somatostatin
- GnRH
- CRH
- TRH
- Dopamine
Name 6 hormones produced in the anterior pituitary gland
- GH
- FSH & LH
- ACTH
- Thyroid stimulating hormone (TSH)
- Prolactin
Which hormone stimulates GH and which hormone inhibits GH?
Stimulates = GHRH
Inhibits = somatostatin
What role does dopamine play?
Inhibits prolactin secretion
What role does GnRH play?
Stimulates secretion of FSH and LH
What mediates the release of Growth hormone?
IGF - 1
What stimulates the release of GH?
Hypoglycaemia, sleep and exercise
What surpresses the release of GH
Hyperglycaemia
What is the purpose of growth hormones? (5)
- Linear growth in children
- Protein synthesis
- Lipolysis
- Acquisition of growth mass
- Psychological wellbeing
