Which of the following is chief mineralocorticoid of adrenal cortex?
a) cartisol
b) testosterone
c) aldosterone
d) none of them
Explanation Aldosterone is a mineralocorticoid hormone produced in the zona glomerulosa of the adrenal cortex that influences water and salt regulation in the body.
Aldosterone is secreted in response to.…
a) high blood pressure
b) low blood pressure
c) low blood glucose
d) high blood calcium
Explanation low blood pressure: low level of Na+ and high level of K+ in blood
Which of the following hormone has some effect in the secretion of aldosterone from adrenal cortex?
a) FSH
b) LH
c) TSH
d) ACTH
Explanation Angiotensin II (Ang II), potassium (K+) and adrenocorticotropin (ACTH) are the main physiological agonists which regulate aldosterone secretion
How aldosterone to increase blood Na+ level to elevate blood pressure?
a) it acts on kidney tubules to enhance sodium
b) it acts on kidney tubules to enhance water
c) it acts on liver to produce less urea
d) both a and b
The secretion of adrenal cortex stimulating hormone is stimulated by…
a) GnRH
b) FSH
c) CRF
d) TRF
Explanation corticotrophin releasing factor from hypothalamus acts on anterior pituitary and secretes ACTH which acts on adrenal cortex
Cortisone is an important hormone of …
a) adrenal medulla
b) anterior pituitary
c) adrenal cortex
d) posterior pituitary
Explanation Cortisone is a pregnene steroid hormone. It is a naturally-occurring corticosteroid metabolite that is also used as a pharmaceutical prodrug; it is not synthesized in the adrenal glands.
