Question

14:18 Exit Question 11 1 pcs Pick the CORRECT statement about the renin-angiotensin-aldosterone system (RAAS). Angiotensin directly causes Nat reabsorption by the DCT In response to lower than normal Nat in the DCT, the macula densa cells signal the granular cells to release renin Renin is secreted by the posterior pituitary. Renin activates aldosterone from its precursor Aldosterone causes vasoconstriction of arterioles

Answer 1

Answer 11) :

Angiotensin II has two direct actions on the kidney: to increase proximal tabular sodium reabsorption and constrict renal afferent and efferent arterioles. These actions increase sodium and water reabsorption. Renin is secreted from the juxtaglomerular cells in response to low sodium concentration and low tubular fluid flow rate in the distal tubule . Aldosterone stimulates sodium reabsorption in the late distal tubules and collecting ducts.