Embryology of the gastrointestinal Tract

Question 1

what forms the foregut?

Answer 1

the distal esophagus, stomach and part of the duodenum

Question 2

what forms the midgut?

Answer 2

the entrance of the bile duct and goes to the with the right 2/3 of the transverse colon

Question 3

what forms the hindgut?

Answer 3

the left 1/3 of the transverse colon and the ends with the upper part of the anal canal

Question 4

what is the blood supply of the foregut?

Answer 4

celiac trunk

Question 5

what is the blood supply of the midgut?

Answer 5

superior mesenteric artery

Question 6

what is the blood supply the hindgut?

Answer 6

the inferior mesenteric artery

Question 7

what is the sympathetic innervation of the foregut?

Answer 7

greater splanic nervers (T5-T9) and lesser splanchnic nerves (T10-T11)

Question 8

what is the sympathetic innervation of the midgut?

Answer 8

greater splanic nervers (T5-T9) and lesser splanchnic nerves (T10-T11)

Question 9

what is the sympathetic innervation of the hindgut?

Answer 9

lumbar spanchnic nerves (L1-L2)

Question 10

what is the parasympathetic innervation of the foregut?

Answer 10

the vagus nerve

Question 11

what is the parasympathetic innervation of the midgut?

Answer 11

the vagus nerve

Question 12

what is the parasympathetic innervation of the hindgut?

Answer 12

the pelvic splanchnic nerves (S2-4)

Question 13

what control does the sympathetic nervous system have on the GI tract?

Answer 13

decreases motility and tone an contracts sphincters

Question 14

what control does the parasympathetic nervous system have on the GI tract?

Answer 14

increase motility and tone and relaxes sphincters