QUESTIONS WITH CORRECT ANSWERS
GRADED A+
◉ What hormones does the hypothalamus release? Answer: Thyrotropin
- releasing hormone (TRH)
Corticotropin - releasing hormone (CRH)
Gondaotropin - releasing hormone (GnRH)
Prolactin - controlling hormone (PRH)
Oxytocin
◉ Anterior Pituitary Gland hormones. Answer: Thyroid-stimulating
hormone (TSH)
Follicle-stimulating hormone (FSH)
Luteinizing hormone (LH)
Adrenocorticotropic hormone (ACTH)
Growth hormone (GH)
Prolactin (PRL)
◉ posterior pituitary gland hormones. Answer: oxytocin and ADH
(vasopressin)
,These hormones come from the hypothalamus
◉ Thyroid Gland. Answer: * Largest endocrine organ
Function: releases T4 (thyroxine) and T3 (triiodothyronine);
- critical for metabolic functions
Controlled: release of TRH (hypothalamus) → TSH (pituitary) →
stimulates T₄/T₃ release.
↓T₄/T₃ → ↑TSH (negative feedback).
◉ Calcitonin. Answer: From the thyroid gland
Regulates calcium levels
↓ serum calcium (promotes Ca deposition into bone/ decreases
resorption).
◉ Adrenal Gland. Answer: Adrenal Medulla:
part of ANS (fight or flight)
release EPI/ adrenaline and NE
, Adrenal cortex:
-releases steroid hormones (glucocorticoids: cortisol),
Mineralocorticoids - aldosterone and androgen.
◉ Glucocorticoids. Answer: Major role in glucose metabolism; a type of
corticosteroid
CRH→ ACTH → cortisol
Corticosteroids use effects:
- suppression of immunity and inflammation
- leads to DM2, osteoporosis, PUD, poor wound heal, HLD.
◉ What happens if you take in exogenous glucocorticoids? Answer: Can
inhibit the release of ACTH (from the pituitary) which can cause adrenal
atrophy
◉ Mineralcorticoids. Answer: Aldosterone: promotes sodium and water
absorption
Regulates fluid and electrolytes
RAAS system