ZoologyBilirubin levels in the blood may rise due to stenosis (narrowing) of

Bilirubin levels in the blood may rise due to stenosis (narrowing) of

A
Sphincter of Oddi
B
Cardiac sphincter
C
Pyloric sphincter
D
Upper oesophageal sphincter

Solution:

Sphincter of Oddi guards the opening of ampulla of Vater (hepatopancreatic ampulla) into the duodenum. If this sphincter is stenosed, release of bile juice into the intestine is affected (obstructive jaundice). Hence blood bilirubin levels may elevate.