Lower GI Tract

Question 1

Oesophagus travels through diaphragm at what vertebral level?

Answer 1

T10

Question 2

Abdominal cavity from superficial to deep?

Answer 2

skin, superficial fascia, deep fascia, 3 layers of skeletal muscle, peritoneum

Question 3

Peritoneum secretes…

Answer 3

lubricating peritoneal fluid

Question 4

Visceral peritoneum…

Answer 4

invests organs

Question 5

Parietal peritoneum

Answer 5

touches the internal body wall

Question 6

Draw out the 9 regions of the abdomen and name

Answer 6

http://legacy.owensboro.kctcs.edu/gcaplan/anat/notes/Image564.gif

Question 7

Which quadrant is the stomach in?

Answer 7

left lower quadrant

Question 8

Small intestine attachment

Answer 8

by mesentery (double layer of peritoneum)

Question 9

Small intestine, 3 parts:

Answer 9

Duodenum, Jejunum and Illeum

Question 10

Large intestine: 6 parts in order of progression

Answer 10

Ileocecal junction, ceacum, ascending colon, tranverse colon, descending colon, sigmoid colon

Question 11

What controls flow in the GI tract?

Answer 11

Cricopharyngeal sphincter- prevent regurgitation into pharynx
Pyloric sphincter- control release of chyme from stomach into duodenum
External anal sphincter- release of stool from anal canal

Question 12

Foregut organs (oesophagus, liver, gall bladder, spleen, pancreas) supplied by…

Answer 12

coeliac trunk from the descending aorta

Question 13

Midgut organs (pancreas, Mid-duodenum to proximal 2/3rds of Transverse colon) supplied by…

Answer 13

superior mesenteric artery from the descending aorta

Question 14

Hindgut organs (Distal 1/3rd of Transverse colon to Proximal ½ of Anal canal) supplied by…

Answer 14

inferior mesenteric artery from the descending aorta