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HPT, HPA, HPG
(insert between p.9 & 10)
- endocrine system
- hormones released from hypothalamus
- affects release of pituitary hormones and target endocrine glands (adrenals, thyroid, gonads)
What hormonal changes are indicative of menopause?
- decreased estrogen from ovaries
- stimulates increased FSH from pituitary gland
metabolic regulator between 2 extremes -- hyperthyroidism and hypothyroidism
What physiologic effect will T3 have on beta-adrenergic receptors and, in turn, on clinical s/s of hypothyroidism or hyperthyroidism?(p.7)
increase synthesis of beta-adrenergic receptors --> increase formation of hormone-receptor complexes --> increase biologic activity
S/S of Hyperthyroidism
- increased beta-adrenergic activity
- = tachycardia
- = increased cardiac output
- = wide pulse pressure
- = decreased peripheral vascular resistance
- = anxiety
- = eyelid retraction - starring expression due to contraction of Muller's muscle
- = warm skin (heat dissipation)
- = sweating
How can clinical s/s of hyperthyroidism be eliminated?
- impaired beta-adrenergic synthesis
- may allow alpha-adrenergic receptor activity to predominate
- = increased peripheral vascular resistance = increased BP (esp. with Hx of Htn)
What pituitary hormone is released in response to hypovolemia and increased serum osmolality?
Antidiuretic hormone (ADH)
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