Renal Histology II Flashcards
what characterizes the proximal convoluted tubule?
a microvillus brush-border, lot’s of mitochondria
how much reabsorption occurs in the proximal convoluted tubule?
65%
what hormone made by the adrenal glands affects the distal convoluted tubule?
aldosterone
about ___% is reabsorbed in the medulla
15
about ___% is reabsorbed in the distal tubule
10
about ___ % is reabsorbed in the collecting duct
9
intercalated cells are associated with ____
acid base balance
the outer stripe of the outer medulla is composed of:
ascending and descending thick segments
the inner stripe of the outer medulla is composed of:
descending thin and ascending thick segments
what do you get in the inner zone of the medulla?
collecting ducts, thin segments and a lot of interstitium
the medullary rays are composed of:
ascending and descending thick segments of the loop of Henle and collecting ducts
are there thin segments in the medullary rays?
no
what do you find in the cortex?
proximal and distal convoluted portions of the loop of Henle, renal corpuscle and glomeruli, macula densa
how can you distinguish proximal and distal tubules
proximal has debris and microvillus brush border, distal has more apparent nuclei that are closer together
an identifying feature of collecting ducts:
have a straight intercellular border (no basolateral folds), few organelles
