The juxtaglomerular apparatus is composed of?

Question

A. juxtaglomerular cells and the macula densa
B. podocytes and juxtaglomerular cells
C. The macula densa and the filtration membrane
D. juxtaglomerular cells and the filtration membrane
E. glomerulus and Bowmans capsule

Whats one feature of renal blood circulation that makes it unique is that?
A. there is a double set of venules
B.blood flows from arterioles into venules
C. blood flows from venules to arterioles
D. each nephron has at least two capillary networks
E. the nephronis only associated with the glomerulus

Answer 1

Within the nephron, there is a plaque of cells in the ascending loop of Henle that is called the macula densa. Where this portion of the loop contacts the afferent arteriole, the wall of the arteriole contains secretory cells called juxtrglomerular cells. The combination of the two is known as the JGA, so the answer to #1 is A.
Each nephron has two arterioles and two sets of capillaries associated with it, so the answer to #2 is D.