CIS GI Correlations

Question 1

What is hematemesis?

Answer 1

Vomiting of blood or coffe-ground like material

Question 2

What is melena?

Answer 2

Think melanin (black pigment)

Melena is black, tarry stools

90% are due to upper GI bleeds

Question 3

What is Hematochezia?

Answer 3

Red or maroon blood in stool

Usually due to lower GI bleed

Can be due to MASSIVE upper GI bleed

Question 4

What is schatzkis ring?

Answer 4

Ring obstruction in esophagus

Question 5

What is Chaga’s disease?

Answer 5

Secondary achalasia (impaired relaxation of Lower esophageal sphincter)

Caused by a parasite

Question 6

What is Auerbach’s plexus?

Answer 6

Also known as the myenteric plexus

It is the plexus of nerves found throughout the GI tract in the muscularis propria between the inner circular muscle layer and the outer longitudinal muscle layer

Question 7

What is meisner’s plexus?

Answer 7

Also known as the submucosal plexus

It is the plexus of nerves found throughout the GI tract in the submucosal layer