Ch 32 Flashcards
What is up regulation?
the cell makes more hormone receptors
What is down regulation?
the cell makes less hormone receptors
What are/can hormones be made of?
amino acids, proteins (peptide hormones), cholesterol (steroid hormones), or fatty acids
What are primary, secondary, and tertiary hormone disorders?
Primary - abnormality in the gland where the hormone is produced
Secondary - abnormality in stimulation from the pituitary
Tertiary- abnormality in stimulation from the hypothalamus
What is the hypothalamus responsible for?
temperature, blood osmolarity, blood nutrients, blood hormone levels, inflammatory mediators in the blood, emotions, pain
What type of hormones does the hypothalamus release?
Releasing hormones
What type of hormones does the pituitary gland release?
tropic or stimulating hormones
What is the most common cause of hyperpituitary?
anterior pituitary adenoma
In what order are pituitary hormone functions usually lost with hypopituitary?
1st - GH, LH, FSH
2nd - TSH
3rd - ACTH
4th - Prolactin
How much of the pituitary function must be destroyed before hypopituitary begins to manifest itself?
70-90%
What stimulates GH secretion?
hypoglycemia, fasting, starvation, or stress
What inhibits GH secretion?
increased glucose levels, free fatty acid release, obesity, or cortisol
What hypothalamus hormones lead to the production of growth hormone?
GHRH, somatostatin, and ghrelin
