Histo Urinary System Flashcards Preview

Block 2 Week 4 > Histo Urinary System > Flashcards

Flashcards in Histo Urinary System Deck (162)
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1

What are the components of the urinary system?

kidneys and urinary tract

2

What is the function of the kidneys?

filtration – kidney glomeruli
selective resorption and excretion – kidney tubular system
synthesis of renin (regulates blood pressure via renin-angiotensin system)
synthesis of erythropoietin (regulates RBC production via  [O2]
produced by interstitial fibroblast of the kidney
activates Vitamin D3

3

In the kidney, what is responsible for filtration?

kidney glomeruli

4

In the kidney, what is responsible for resorption and excretion?

kidney tubular system

5

In the kidney,what is responsible for the synthesis of renin?

RAAS

6

In the kidney, what is responsible for the synthesis of erythropoietin?

interstital fibroblast of kidney

7

What regulates bloodpressure via the RAAS?

renin

8

What regulates RBC production via decreased amount of Oxygen?

erythropoietin

9

What activates vitamin D3?

the kiDney

10

Is the kidney encapsulated?

yes

11

What is in the cortex of the kidney?

renal corpuscles or glomeruli
cortical labyrinth and medullary rays

12

How many medullary rays are then in a human kidney?

400-500

13

What do medullary rays look like?

almost like the splenic cords, long and dark and longitduinal

14

What do cortical labyrinths look like?

like swirlies filled with corpuscles

15

How many renal lobes/pyramids of the medulla are there?

15-20

16

What does the base of a renal pyramid form?

the corticomedullary border

17

What is the rounded off end of a renal pyramid?

a renal papilla

18

Renal papilla drain up to (blank) collecting ducts/ducts of bellin

20

19

What does a kidney lobe refer to?

medullary pyramid + overlying cortex

20

What does a kidney lobULE refer to?

a group of nephrons that open into branches of the same main collecting duct.... space between 2 interlobular arteries

21

How does the kidney regulate hematopoiesis?

secretion of erythropoieten

22

Where are the renal corpuscles and glomeruli found?

CORTEX!

23

What does the nephron consist of?

Renal corpuscle (glomerulus) and kidney tubules (PCT, Loop of Henle, DCT)

24

Each kidney has more than (blank) nephrons

1 million!

25

What happens in the nephron?

filtration , excrection and reabsorption

26

What is a uriniferous tubule?

nephron plus colleting duct

27

The end of renal papilla resemble a strainer and is called (blank)

area cribosa

28

What does a renal corpuscle consist of?

Bowmans capsule and glomerulus

29

What do arcuate vessels do?

separate cortex from medulla

30

The renal corpuscle of each (blank) nephron is located in the outer region of the cortex. Its loop of Henle is short and does not enter the medulla. The efferent glomerular arteriole branches into a peritubular capillary network, surrounding the convoluted segments of its own and adjacent nephrons.

Cortical nephron