(Fig. 1.4a)
The Juxtaglomerular apparatus. Note: (1) Macula densa of distal tubule.
(2) Juxtaglomerular (lacis) cells.
(3) Granular renin-secreting epithelial cells of afferent arterioles.(Fig. 1.4b)
PAS stained kidney section (X 260), which shows a normal glomerulus cut
through the hilus. The branching mesangial stalk is clearly seen (arrow-1).
The capillaries are attached to the stalk, forming peripheral capillary loops
(arrow-2).