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Z MD1 Renal block > Histology > Flashcards

Flashcards in Histology Deck (20)
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1

what does the medulla of the kidney consist of

renal pyramids separated by cortical columns

2

where are arcuate vessels in the kidney

at the boundary between cortex and medulla

3

what is the difference between interlobular and interlobar vessels

interlobular = go upwards into the cortex from the arcuate vessels
interlobar = go downwards into the medulla between the medullary pyramids

4

what is Bowmans space

the hollow space between capillaries and capsule in the glomerulus

5

where are podocytes

cover the surface of glomerular capillaries (form the inner layer of the Bowmans capulse

6

what is special about the endothelium of the capillaries of the glomerulus

the wall is fenestrated - have gaps

7

what are pedicles

foot processes of podocytes

8

what covers the space between adjacent pedicils of the podocytes

slit membranes

9

what composes the filtration barrier in the glomeruls

basal lamina plus slit membranes of the podocytes

10

explain the cells lining the proximal tubule

simple cuboidal epithelium with a brush border of tall microvilli, with a very folded basolateral membrane and many ion pumps and mitochondria

11

explain the cells lining of the thin part of the LOH

squamous cells

12

explain the cells lining the distal tubule

simple cuboidal epithelium with no microvilli, may ion pumps and even more mitochondria than PT

13

signals from the macula densa do what

signals the juxtaglomerular cells of the afferent arteriole to release renin

14

explain the cells lining the collecting duct

simple cuboidal epithelium, becoming more columnar along the duct

15

which vessel to the vasa recta come off

efferent arteriole

16

explain the cells lining the ureter

transitional epithelium

17

explain the control of the urinary bladder

controlled by both autonomic and somatic nervous systems

18

explain the cells lining the urinary bladder

multi-layered transitional epithelium

19

explain the innervation of the urethra

fibromuscular tube innervated by autonomic nerves
somatic nerves control external urethral sphincter

20

explain the cells lining the urthra

firstly transitional epithelium and then stratified squamous