Sympathetic stimulation causes granular cells to release
a. granular cells to release renin, which ultimately leads to mesangial cell contraction.
b. granular cells to release renin, which ultimately leads to mesangial cell relaxation.
c. mesangial cells to release angiotensin, which ultimately leads to granular cell contraction.
d. inhibited release of erythropoietin and contraction of granular and mesangial cells.
E. mesangial cells to release angiotensin, which ultimately leads to granular cell relaxation
Answer
Sympathetic stimulation causes: granular cells to release renin, which ultimately leads to mesangial cell contraction.
Renin is released from granular cells of juxtaglomerular apparatus in the nephron. Renin activates angiotensinogen to angiotensin which causes contraction of mesangial cells and decrease in filtration rate.