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Renal Anatomy > Embryology > Flashcards

Embryology Flashcards

1
Q

From which embryological structure does the definitive kidney develop?

A

Metanephros

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2
Q

What does the ureter develop from?

A

Ureteric Bud

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3
Q

Intermediate Plate Mesoderm develops what

A

Urogenital System (Kidneys and Repro)

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4
Q

Lateral Plate Mesoderm develops

A

Body Cavity

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5
Q

Paraxial Mesoderm develops

A

Somites

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6
Q

What is Allantois

A

Outpouching of endoderm at hindgut that extends into body stalk

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7
Q

What is Cloaca

A

single posterior opening

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8
Q

The Cloaca gets divided into

A

Rectum Posteriorly and Urogenital Sinus Anteriorly

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9
Q

Urogenital septum divides the cloaca into rectum

A

posteriorly and urogenital sinus anteriorly

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10
Q

Allantois gets obliterated at birth to form

A

Urachus

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11
Q

Urogenital sinus forms

A

Urinary Bladder

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12
Q

How many sets of kidneys develop sequentially during nephrogenesis

A

3 Sets

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13
Q

How many sets of kidneys develop sequentially during nephrogenesis

A

3 Sets

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14
Q

When does intermediate mesoderm become pronephros

A

Early in fourth week

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15
Q

What makes up the Pronephros

A

Pronephric duct + rudimentary pronephric tubules

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16
Q

Pronephric duct drains into

A

Cloaca

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17
Q

When does the Pronephros mainly degenerate by

A

5th Week

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18
Q

In week 4 what does the pronephric duct become

A

Mesonephric Duct

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19
Q

Mesonephric tubules drain into

A

Mesonephric Duct

20
Q

Mesonephros functions as kidney for how many weeks

A

4

21
Q

What is the Metanephros also known as

A

Definitive Kidney

22
Q

When does the metanephros start to develop from

A

Week 5

23
Q

When does the metanephros start to function from

A

Week 9

24
Q

The metanephros consists of

A

Ureteric Bud that comes off Mesonephric Duct

Metanephric Mesoderm

25
Q

What is the most caudal part of intermediate mesoderm

A

Metanephric mesoderm

26
Q

Much of the mesonephros will be incorporated into the

A

developing gonad

27
Q

The mesonephric tubules become the

A

Rete Testis

28
Q

The mesonephric duct becomes the

A

Vas Deferens

29
Q

In females the mesnephros become the

A

ovary but tubules and mesonephric duct degenerate

30
Q

The ureteric bud undergoes repeated branching where

A

Distal end

31
Q

The stalk of the ureteric bud becomes the

A

Ureter

32
Q

The expanded cranial end of ureteric bud becomes

A

renal pelvis

33
Q

The first 4 generations of branches of ureteric bud become confluent to become

A

major calyces

34
Q

The next 4 generations of ureteric bud form

A

minor calyces

35
Q

The remaining generations after the first 8 generations of ureteric bud become

A

Collecting Tubules

36
Q

The ureteric bud and metanephric mesoderm do what to each other

A

reciprocally induce each other

36
Q

The ureteric bud and metanephric mesoderm do what to each other

A

reciprocally induce each other

37
Q

The nephron is made up of

A

Renal Corpuscle and PCT + Loop of Henle + DCT

38
Q

The uriniferous tubule is made up of

A

Nephron and Collect Duct

39
Q

Nephron develops from

A

Metanephric Mesoderm

40
Q

Collecting Duct and Calyces, Pelvis and Ureter develop from

A

Ureteric Bud

41
Q

Hilum of kidney rotates from

A

Ventral to Medial (90 Degrees)

42
Q

Ascent of kidneys stop when they come in contact with

A

Adrenal Glands

43
Q

Intermediate Mesoderm develops into

A

Rudimentary Pronephros in Neck Week 4

44
Q

Ureteric Bud grows out of caudal end of

A

Mesonephric Duct and branches to form Renal Pelvis, Calyces and Collect Duct

45
Q

The ureteric bud and metanephric mesoderm do what to each other

A

Reciprocally induce each other

46
Q

Final position of hilum

A

Medial

Renal Anatomy (6 decks)

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