Week 2- Histology Flashcards Preview

Urinary > Week 2- Histology > Flashcards

Flashcards in Week 2- Histology Deck (25):
1

Describe the development of renal corpuscle

-Primitive renal tubule (which is derived from ureteric bud) is a blind ended tube which envelops growing glomerulus producing renal corpuscle

2

What is the vascular pole of the renal corpuscle?

-Afferent and efferent arterioles which form the glomerulus

3

What is the urinary pole of the renal corpuscle?

-Bowmans capsule

4

What are the two layers of the bowmans capsule and what lies between them?

-Parietal and visceral
-Bowmans space

5

What forms the filtration barrier of the renal corpuscle?

-Visceral layer of bowmans capsule (podocytes with foot processes)
-Fenestrated Capillary endothelium

6

How are podocytes formed?

-Visceral layer of bowmans capsule wraps around capillary endothelium

7

What is the function of the podocytes?

-To form filtration slits which overlap the fenestrated capillary

8

What epithelia lines PCT?

-Simple cuboidal with brush border

9

what is the longest most convoluted section of the nephron?

-PCT

10

What are the 4 parts of the loop of henle?

-Pars Recta
-thin descending limb
-thin ascending limb
-thick ascending limb

11

What epithelia lines thin limbs in loop of henle?

-Simple squamous

12

What epithelia lines thick ascending limb in loop of henle?

-Simple cuboidal

13

Where in the kidney is the DCT?

-Cortex

14

What is special about the DCT epithelia?

-Contain numerous mitochondria for active transport

15

What makes up the juxtaglomerulus apparatus?

-The macula densa of DCT
-Juxtaglomerular cells of afferent arteriole of parent glomerulus
-Extraglomerular mesangial cells (lacis cells)

16

What is the macula densa?

-An area of dense cells which touch the parent afferent arteriole

17

What is the histiological difference between CD and DCT tubules?

-CD lumen larger and more irregular

18

What is the renal pyramid?

-organisation and merging of collecting ducts to form progressively larger ducts which empty into renal papilla

19

Describe the muscular histology of the ureter

-A muscular tube which has two layers of smooth muscle with a third layer appearing in lower third

20

What epithelium lines the ureter?

-Transitional

21

Are the ureters capable of peristalsis?

-Yes

22

What epithelium lines the bladder?

-Transitional

23

How many layers of muscle does the bladder have?

-3

24

What makes up a renal corpuscle?

-Glomerulus
-Bowman's capsule

25

Is the bladder covered by peritoneum?

-No (by adventitia)