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Kidney failure RNL week 1 > Embryology of the abdominal viscera > Flashcards

Embryology of the abdominal viscera Flashcards

1
Q

What mesentery does the foregut have associated with it

A

Ventral mesentery

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2
Q

What mesentery does the hindgut have associated with it

A

Dorsal mesentery

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3
Q

What does the cloacal membrane do

A

divide the cloaca into an anterior and posterior portion

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4
Q

What does the anterior cloacus become

A

Primitive urogenital sinus

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5
Q

What does the posterior cloacus become

A

anorectal canal

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6
Q

What are the 3 portions of the urogenital sinus

A

Urinary bladder (upper part)
Narrow canal- pelvic canal
Definitive urogenital sinus

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7
Q

What are examples of fistulas

A

Occurs between
-Rectum and vagina (rectovaginal fistula)

  • Rectum and bladder (rectsovesticular fistula)
  • Rectum and urethra (urorectal fistula)

These are all abnormal openings

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8
Q

What is the meseonephric duct

A

Fuses with cloaca. Important as the kidney is derived from this structure

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9
Q

What is the third persistent functioning kidney

A

Metanephros

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10
Q

What does the ureteric bud give rise to

A

Ureter
Pelvis
Major and minor calyses
Collecting tubes

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11
Q

What is the paramesonephric duct formed from and where is it

A

Coelomic epithelium

it is on antolateral surface of the urogenital ridge

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12
Q

What do the two two paramesopehric ducts fuse in females to form

A

Part of the uterus and upper part of the vagina

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13
Q

What forms the lower part of the vagina

A

Urogenital sinus

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14
Q

What does the mesonephric ducts form in males

A

Main genital tract

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15
Q

What is renal agenesis and dysplasia

A

agenesis- Not formed either unilaterally or bilaterally

Dysplasia - not formed correctly

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16
Q

What is an ectopic kidney

A

Kidney fails to ascend

17
Q

What is a double ureter

A

IF ureter splits too early then it will lead to a double ureter

18
Q

What is a bladder exstrophy

A

Bladder on outside of world

19
Q

What is vesicoureteric reflux

A

Retroteric flow of urine from bladder into kidney but will usually resolve as patient grows older

20
Q

What may explain duplications of the uterus (uterus bicornis)

A

Lack of fusion of the paramesonephric ducts

21
Q

What is atresia of the cervix

A

The cervix is ‘closed off’ to the uterus and it may be complete or partial

22
Q

What happens if there are defects in urethral folds

A

There may be incomplete fusion and there may be ‘holes’ around base of penis or in shaft of penis

Kidney failure RNL week 1 (10 decks)

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