Urinary System Dr. Yan Flashcards Preview

Block 2 Week 5 > Urinary System Dr. Yan > Flashcards

Flashcards in Urinary System Dr. Yan Deck (70)
Loading flashcards...
1

Where does the urinary system originate from?

intermediate mesoderm

2

What are the three successive kidneys?

pronephros
mesonephros
metanephros

3

Where does the pronephros come from and is it functional?

cervical region, non functional

4

How long does the pronephros exist for?

only during week 4

5

When does the mesonephros appear and disappear?

appears at week 4 and disappears at end of 2 months (except for mesonephric duct in males)

6

Where does the mesonephros com form?

thoracolumbar

7

When does the metanephros appear?

week 5

8

which kidney is the definitive kidney?

metanephros

9

Which kidney is the inducer?

mesonephros

10

Where does the mesonephros kidney originate from?

intermediate mesoderm

11

Describe the process occurring at week 4 starting with the excretory tubule?

excretory tubule-> glomerulus and bowman's corpuscle= renal corpuscle-> mesonephric (Wolffian) duct

12

What does the renal corpuscle turn into during week 4?

mesonephric duct

13

What does the urogential ridge begin to turn into at the 2nd month?

gonads

14

By the end of the 2nd month, (blank) in the males go to ejaculatory duct and females disappear

mesonephric ducts

15

Is the second kidney functional?

yes

16

When does the metanephros (definitive kidney) appear?

week 5

17

Ureteric bud outgrown from the mesonephric duct penetrate metanephric tissue and induces (blank)

metanephric blastema (from intermediate mesoderm).

18

the ureteric bud continues to divide to form what?

ureter, renal pelvis, major and minor calyces, and collecting tubules

19

when do you get the creation of the ureter and renal pelvis?

6th week

20

When do you get the creation of the minor and major calyxes?

7th week

21

When do you get the creation of the collecting tubules?

newborn

22

What make the renal pyramids?

collecting tubules

23

What is formed by the metanephric mesoderm induced by ureteric bud?

filtration system

24

What is the filtration system formed by?

metanephric mesoderm induced by uretic bud

25

Describe the formation of the filtration system?

metanephric tissue cap-> renal vesicles-> s-shaped tubule-> capillaries grow into-> glomeruli

26

What is the excretory unit?

nephron

27

What creates the metanephric tissue caps?

the endothelium secretes signals to induce formation of the mesenchymal cells to turn into metanephric tissue caps

28

kidney development is dependent upon (blank).

epithelial mesenchymal interactions

29

(blank), expressed in mesenenchyme, stimulate branching and growth of the ureteric bud.

growth factors

30

What is this?
cyst formation from collecting tubules; renal failure in infancy or childhood

Autosomal recessive polycystic kidney disease