Embryo of Gut (In Class)- Cole Flashcards Preview

Gastrointestinal I > Embryo of Gut (In Class)- Cole > Flashcards

Flashcards in Embryo of Gut (In Class)- Cole Deck (40)
Loading flashcards...
0

What does the endoderm make?

epithelial lining

1

what are mesenteries?

reflections of parietal peritoneum onto gut tube

2

what are secondarily reteroperitoneal?

things that had dorsal mesentery

3

only place that there is ventral mesentery in adults?

liver

4

3 segments of gut? what do they have?

foregut, midgut, hindgut; have own blood supply and innervation

5

foregut includes?

esophagus to 1/2 duodenum, liver, gallbladder, pancreas

6

forgut gets supplied by?

celiac artery

7

midgut is supplies by?

superior mesenteric artery

8

hindgut is supplied by?

inferior mesenteric a.

9

innervation of foregut? where does it synapse?

greater splanchnic n. (T5-9); celiac plexus

10

midgut is innervated by? synapses?

Lesser Splanchnic (T9-T12)

11

Parasympathetics to foregut and midgut? synapse where?

vagus n. (CN X); organ walls

12

parasympathetics to hindgut?

S2-4 (pelvic splanchnic n.)

13

what kind of defect is an esophageal atresia considered to be?

canalization

14

hypertrophic pyloric stenosis appears when? as what?

2-3 weeks after birth; projectile, no bilious vomit

15

where does the liver develop? what else develops there?

ventral mesentery; gallbladder and bile ducts

16

where does the pancreas develop

buds in both ventral and dorsal mesentery

17

ventral mesentery gets divided into what 2 parts?

falciform ligament and lesser omentum

18

ligamentum teres hepatis is the remnant of what?

obliterated left umbilical v.

19

some of the things that extrahapatic biliary atresia presents with?

jaundice, pale stool, dark urine

20

treatment of extra-hepatic biliary atresia?

surgical correction or transplant

21

pdx1 is specific for development of what organ?

pancreas

22

pax4 regulates what?

cells that secrete insulin, somatostatin, & pancreatic polypeptide

23

pax 6 regulates?

cells secreting glucagon

24

how does annular pancreas present?

duodenal obstruction; pancreatic buds form a ring around duodenum

25

where is ectopic pancreatic tissue most common?

stomach or ileum (ileal or Meckel's diverticulum)

26

apple peel atresias are associated with what normally?

vascular problems

27

by what week does the intestine move back into body?

week 10

28

what is an intussuception?

part of gut tube tunneled into another part

29

what is an omphalocele?

herniation of abdominal contents thru enlarged umbilical ring (normal if temporary)