Explain the structural and functional significance of the location of the juxtaglomerular apparatus.
A)This location allows the macula densa cells to receive information about the results of the three processes of urine formation and give instructions to the afferent arteriole thus changing activity levels for future urine production.
B)This location allows the macula densa cells to receive information about the results of the three processes of urine formation and give instructions to the efferent arteriole thus changing activity levels for future urine production.
C)This location provides the best opportunity to affect rates of reabsorption.
D)This location has a higher interstitial osmolarity allowing regulation of salt concentrations in urine.

Question

Quizplus · Accepted Answer

The juxtaglomerular apparatus is located near the glomerulus and the afferent arteriole, allowing the macula densa cells to monitor the composition of the fluid in the distal convoluted tubule and regulate blood flow and filtration rate by signaling the afferent arteriole.

Explain the Structural and Functional Significance of the Location of the Juxtaglomerular