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Physiology/Wk 13

Endocrine System

TermDefinition
Hypothalamus Master regulator that releases hormones (e.g., GnRH, TRH, CRH) to control the anterior
Anterior Pituitary Releases TSH, ACTH, LH, FSH, GH, and prolactin in response to hypothalamic releasing hormones.
What gland releases T3 and T4? Thyroid Gland
Negative Feedback Loop A regulatory mechanism where rising hormone levels inhibit further hormone release (e.g., T3/T4 suppress TSH).
What does the adrenal cortex produce? Cortisol, aldosterone, and androgens.
What is the function of aldosterone? Maintains sodium and water balance by acting on the kidneys; increases blood pressure
Insulin A pancreatic hormone that lowers blood glucose by promoting cellular glucose uptake.
What happens in Type 1 Diabetes Autoimmune destruction of beta cells leads to lack of insulin production.
Hyperthyroidism Excess thyroid hormone causing increased metabolism, tachycardia, heat intolerance, and weight loss.
Which hormone triggers ovulation? Luteinizing hormone (LH).
Created by: ksdean4547
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