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Flashcards in kidney, ureter and urinary bladder Deck (21):
1

what arteries do we find bordering the cortical lobules in kidney where do they arise from?

cortical interlobular arteries arising from arcuate a. coming from interlobular from renal a.

2

what veins are found in the fibrous capsule?

the stellate veins

3

describe the renal corpuscle?

- round with central glomerulus od anastomosing capillary loops.
- surrounded by double walled membranous capsule-->bowmans capsule

4

what cells line the parieta l layer of bowmans capsule?

- squamus epithelial cells supported by a thin basement membrane

5

what cells line the viceral layer of bowmans capsule and whats their function?

- podocytes
- Their foot processes assist in filtration barrier function by repelling negatively-charged molecules.

6

whats the difference b/w afferent and efferent aretiole in glomerulus, where do they enter the glomerulus?

- the afferent has a lumen thats wider than efferent
- enter at vascular pole

7

what cells can be found in glomerulus and whats thei function?

- mesingeal cells: Provides structure support and regulate diameter of capillaries

- podocytes: Foot processes assist in filtration barrier function by repelling negatively-charged molecules.

8

what cells can be found in tunica media in vascular pole and whats their function?

- juxtaglomerular cells
- they secreate renin

9

histological caracteristics of proximal convulated tubule?

- simple tall cuboidal cell
- apical brush border with long microvilli
- strongly eosinphilic
- striations in basal cytoplasm, which is mitochondria
- lumen not seen well

10

histological caracteristics of loop of henle?

- simple squamus or low cuboidal epithelium
- flattend nuclei
- no brush border
- lumen can be seen

11

histological caracteristics when thin goes to thick ascending limb?

- size of cell increases
- the mitochondria in the basal part exhibit basal striations
- devoid of brusch border

12

histological caracteristics of distal convoluted tubule?

- lined by cuboidal cells
- devoid of brush border
- clear outlined lumen

13

whats the portion of distal convulated tubule which is close contact with vascular pole called, and whats its function?

- called macula densa
- senses blood pressure, regulates blood flow in afferent arteriole to maintain the glomerular filtration rate and stimulates release of renin.

14

histological characteristics of macula densa?

- dark basophilic
- large crowded nuclei
- forms juxtaglomerular apparatus with macula densa

15

histological characteristics of collecting duct?

- as they descend they grow larger, cell size lengthens from cuboidal to columnar.
- apical surdace dome-shaped

16

histologica characteristics of ureter?

- mucosa--> transitional epithelium
- lamina propria--> thin dense ct, elastic fiber

17

layers of transitional epi?

- basal layer--> small cuboidal or small columnar
- intermediate--> larger polygonal or pear shaped
- superfcial--> umbrella cells

18

layers of muscle of ureter?

inner: longitudinal (appear in mid portion)
outer: circular or oblique

19

outermost layer of ureter?

serosa: covers ventral srfc of ureter

adventitia: loose CT, w fibrocyte, collagen and elastic fibers

20

layers of urinary bladder?

mucosa
- lamina propria
- muscularis mucosae
submucosa
muscularis externa
adventita
serosa: ( upper surface of bladder)

21

layers of muscle in bladder?

- outer and inner longitudinal
- intermediate circular