The renin-angiotensin-aldosterone system, ADH and ANP all work together to achie
ID: 3512609 • Letter: T
Question
The renin-angiotensin-aldosterone system, ADH and ANP all work together to achieve water and electrolyte homeostasis. Which of the following is NOT an interaction between these hormones?
Question 7 options:
ANP inhibits the secretion of ADH.
ANP inhibits the secretion of aldosterone.
angiotensin II stimulates the release of ADH.
angiotensin II stimulates the release of ANP.
angiotensin II stimulates the release of aldosterone.
ANP inhibits the secretion of ADH.
ANP inhibits the secretion of aldosterone.
angiotensin II stimulates the release of ADH.
angiotensin II stimulates the release of ANP.
angiotensin II stimulates the release of aldosterone.
Explanation / Answer
ANSWER: ANGIOTENSIN II DOES NOT STIMULATE RELEASE OF ANH.
ANP acts on the kidney to increase sodium and water excretion.NPs affect the kidneys by increasing glomerular filtration rate (GFR) and filtration fraction, which produces natriuresis (increased sodium excretion) and diuresis (increased fluid excretion).The renal action of NPs is that they decrease renin release, thereby decreasing circulating levels of angiotensin II and aldosterone.
When the blood volume decreases, the juxtaglomerular cells of kidney convert PRO renin to renin. Renin released into blood converts angiotensinogen to angiotensin, I which is converted into angiotensin II by angiotensin-converting enzyme (ACE). The angiotensin II acts via receptors in the adrenal glands to stimulate the secretion of aldosterone, and it causes the renal tubules to increase the reabsorption of sodium and water into the blood, which further causes an increase in blood pressure and angiotensin II also causes the release of anti-diuretic hormone (ADH), from the posterior pituitary gland.