XIII - Renal/Urinary System Flashcards Preview

Histology > XIII - Renal/Urinary System > Flashcards

Flashcards in XIII - Renal/Urinary System Deck (35):
1

Epithelium of renal tubules

simple cuboidal

2

Renal Functional Unit

Nephron

3

Nephron Components

renal corpuscle, proximal convoluted tubule, loop of Henle, distal convoluted tubule, collecting duct

4

Tuft of finely fenestrated capillaries interposed between afferent and efferent arterioles

glomerulus

5

Bowman's Capsule: simple squamous, continuous with PCT

outer parietal layer

6

Bowman's Capsule: receives the fluid filtrates through the capillary wall and visceral layer

capsular (urinary) space

7

Bowman's Capsule: podocytes resting on lamina, part of the glomerular filtration barrier

internal / visceral layer

8

PCT: Cells

simple cuboidal with brush border

9

PCT: Location

cortex

10

Thin Limbs of Loop of Henle: Cells

simple squamous

11

Thin Limbs of Loop of Henle: Location

medulla

12

Thick Ascending Limb of Loop of Henle: Cells

simple cuboidal

13

Thick Ascending Limb of Loop of Henle: Location

medulla, medullary rays

14

DCT: Cells

simple cuboidal

15

DCT: Location

cortex

16

Collecting Duct - Principal Cells: Features

most abundant, cuboidal to columnar

17

Collecting Duct - Principal Cells: Location

medulla and medullary rays

18

Collecting Duct - Intercalated Cells: Features

few, scattered

19

Collecting Duct - Intercalated Cells: Location

medullary rays

20

Principal cells absorb

sodium

21

Principal cells secrete

potassium

22

Intercallated cells absorb

bicarbonate, potassium

23

Intercallated cells secrete

hydrogen

24

Glomerular Filtration Barrier

capillary endothelium, basement membrane, podocyte foot processes

25

Glomerular Filtration Barrier: Size

capillary endothelium

26

Glomerular Filtration Barrier: Charge

basement membrane, podocyte foot processes

27

Modified smooth muscle cells that secrete renin, afferent arteriole

JG (juxtaglomerular) cells

28

Monitors the concentration of sodium in the distal tubules

macula densa

29

Contains receptors for angiotensin II and atrial natriuretic peptide

mesangial cells

30

Mechanism involving kidneys responsible for regulation of blood pressure

renin-angiotensin-aldosterone system (RAAS)

31

Male Urethra: 3-4 cm, urothelium

prostatic

32

Male Urethra: short, passes through external sphincter, stratified columnar, pseudostratified columnar

membranous

33

Male Urethra: 15cm, stratified columnar, psudostratified columnar, stratified squamous (distal)

spongy

34

Female Urethra: Length

4-5 cm

35

Female Urethra: Epithelium

transitional, stratified squamous (distal), some areas of pseudostratified columnar