Embryology of the Digestive System Flashcards Preview

SHB - Exam 2 > Embryology of the Digestive System > Flashcards

Flashcards in Embryology of the Digestive System Deck (14):
1

The endoderm forms the gut tube. True or False?

TRUE

2

Te primordial gut is closed at its cranial end by the _______ membrane and at its caudal end by the ____ membrane.

1. Oropharyngeal

2. Cloacal Membrane

3

The gut tube is suspended by the dorsal or ventral mesentary?

DORSAL

4

The ventral Mesentery gives rise to what 2 structures?

1. Falciform Lig.

2. Lesser Omentum

5

The dorsal mesentery elongated to the left, so the lesser sac is formed ____ the stomach.

BEHIND

6

Which part of the duodenum is the only aspect NOT retroperitoneal?

1st part

- foregut & midgut

7

What comprises the ventral pancreatic bud? The dorsal pancreatic bud?

1. most of head + UNCINATE

2. Dorsal = remainder of pancreas*

8

Pancreas is fused with duodenum at which part?

2nd part

9

The hepatic diverticulum gives what 3 structures?

1. Liver
2. Gall Bladder
3. Bilary Duct System

10

The midgut rotates a total of ____ degrees around which artery?

270 degrees!

around SUPERIOR MESENTERIC ARTERY*

11

What is Meckel's Diverticulum?

Remnant of the Viteline Duct

SYNDROME OF 2's
1. 2 feet from IC valve
2. 2 in long
3. 2% population
4. 2 % symptomatic
5. 2 types ectopic tissue (GASTRIC & PACREATIC)

6. 2 years at clinical presentation
7. 2x more common in BOYS

12

What is the failure of return of the intestine to the abdominal cavity?

Omophalocele

- fist size mass in the umbilical cord
- covered by peritoneum & amnion

13

What part of the hindgut gives rise to the urinary bladder & urethra?

UROGENITAL SINUS

14

Which part of the anal canal developed from the ANAL PIT and not the hindgut?

INFERIOR PART

(rectum & superior part = hindgut)