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Embryology > Urogenital System > Flashcards

Urogenital System Flashcards

1
Q

The “Head Kidney”

A

Proneprhroi

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2
Q

What somite level does the genital and urinary system extend from in the paraxial mesoderm?

A

7th to 28th somite level

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3
Q

What are the 3 different types of kidneys?

A

Pronephroi, Mesonephroi, metanophroi

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4
Q

When does the development of the kidneys begin?

A

3rd week

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5
Q

This kidney has very little function, develops from the 7th - 10th somite level, degenerates at the 4th week and has four pairs of tubules

A

Pronephroi

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6
Q

What type of tubule and glomerulus does the Pronephroi have?

A

Open tubule external glomerulus

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7
Q

What type of tubule and glomerulus does the mesonephroi have?

A

Closed tubules and internal glomerulus

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8
Q

What somite level does the mesonophroi derive from

A

10-26th

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9
Q

How many pairs of tubules are located in the mesonophroi have?

A

38

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10
Q

What is the significance of the Mesonophroi have in males?

A

They remain in the genital duct system

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11
Q

what level of kidney is known as the permanent kidney?

A

Metanophroi

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12
Q

How many nephrons are located in each metanophroi?

A

2 million

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13
Q

When does the metanophroi develop?

A

5th week

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14
Q

The metanophroi develops from what 2 sources?

A

Uteric Bud and Metanephrogenic Blastema

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15
Q

What somite levels is the metanophroi located?

A

26-28

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16
Q

What is a mesodermal mass that divides the cloacal

A

Cloacal Septum

17
Q

In the fetus the allantois is called?

A

Urachus

18
Q

In adults the medial umbilical ligament is derived from what

A

Allantois

19
Q

Type 1 congenital cystic kidney is found in?

A

Infants

20
Q

What trisomy is type 3 Congenital Cystic Kidney found in?

A

13-15, 18, 21, 22

21
Q

This structure is covered by coelum epithelium and inner mass is made up of mesenchyme

A

Genital Ridge

22
Q

This structure develops the uterus and vagina?

A

Paramesonepheric Duct

23
Q

In males what happens to the cortex and medulla of the indifferent gonad?

A

Cortex: Regress
Medulla: Develop

24
Q

In females what happens to the cortex and medulla of indifferent gonad?

A

Cortex: Develops
Medulla: Regress

25
Q

This structure allows for the bypassing of lungs

A

Ductus arteriosus

26
Q

This structure opens into the left ventricle

A

Cavum Aorticum

27
Q

What opens into the right ventricle

A

Cavum Pumonare

Embryology (2 decks)

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