Embryology Flashcards Preview

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Flashcards in Embryology Deck (27)
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1
Q

What are the 3 parts of the mesoderm?

A

Para-axial mesoderm
Intermediate
Lateral plate mesoderm

2
Q

What do para-axial mesoderm form?

A

Somites > Vertebrae

3
Q

What part of the mesoderm forms the urogenital system?

A

Intermediate plate mesoderm

4
Q

What do the lateral plate mesoderm form?

A

Body cavities & coverings

5
Q

What gastrulation layer composes the gut?

A

Endoderm

6
Q

What is the allantois an out pouching of?

A

Endoderm

7
Q

What is the terminal area of the hind gut called?

A

Cloaca

8
Q

What does the cloaca divid into?

A

Rectum

Urogenital sinus

9
Q

What does the urogenital sinus form?

A

Urinary bladder

Urethra

10
Q

How many sets of kidneys develop during embryological development?

A

3

11
Q

What is a remnant of the allantois?

A

Median umbilical ligament

12
Q

What is the name of the primary kidney formed in the embryo?

A

Mesonephros

13
Q

What is the name of the secondary kidney formed in the embryo? Where does it form?

A

Pronephros

Neck

14
Q

Where does the pronephos duct drain into?

A

Cloaca

15
Q

What parts of the kidney degenerates during embryological development?

A
Mesonephros
Pronephros (except pronephric duct)
16
Q

What was the mesonephric duct originally?

A

Pronephric duct

17
Q

What develops off the metanephros?

A

Ureteric bud

Metanephric mesoderm

18
Q

What does the metanephros form?

A

Ureters

Kidney

19
Q

What happens to the mesonephros later in development?

A

Form the ovaries or testes

20
Q

What forms the renal pelvis?

A

Ureteric bud

21
Q

What forms the nephron?

A

Metanephric mesoderm

22
Q

What forms from the ureteric bud?

A

Collecting duct
Calyx
Pelvis
Ureter

23
Q

Where do the kidneys start in embryological development?

A

Either side of bladder

24
Q

Where do the kidneys lie in the abdomen?

A

T12-L3

25
Q

What stops the ascent of the kidneys?

A

Adrenal glands

26
Q

What is the abnormality called when 2 ureters are present?

A

Duplicated ureter

27
Q

What is it called when the kidneys do not separate in embryological development?

A

Horseshoe kidney