Question

Column I contains names of the sphincter muscles of the alimentary canal and column II contains their locations. Match them properly and choose the correct answer 

Column I		Column II
A	Sphincter of ani internus	p	opening of hepatopancreatic duct into duodenum
B	Cardiac sphincter	q	between duodenum and posterior stomach
C	Sphincter of oddi	r	guarding the terminal part of alimentary canal
D	Ilocaecal sphincter	s	between oesophagus and anterior stomach
E	pyloric sphincter	t	between small intestine and bowel

• A. A = r, B = q, C = s, D = p, E = t
• B. A = q, B = t, C = p, D = s, E = r
• C. A = r, B = s, C = p, D = t, E = q
• D. A = s, B = r, C = p, D = q, E = t

Answer 1

The Correct Option is C

Answer (c) A = r, B = s, C = p, D = t, E = q

Answer 2

Ans. A.Sphincter of ani internus →  r. Guarding the terminal part of alimentary canal

This internal anal sphincter is in charge of regulating the passage of excrement out of the alimentary canal's terminal portion. 

B. Cardiac sphincter →  s. Between the duodenum and posterior stomach

There is a cardiac sphincter situated between the anterior stomach and esophagus.  

It regulates how food travels from the esophagus to the stomach. 

C. Sphincter of Oddi →  1. Opening of hepatopancreatic duct into the duodenum.

The sphincter of Oddi regulates the entry of the hepatopancreatic duct into the duodenum. The sphincter of Oddi regulates the flow of pancreatic juice and bile into the duodenum. 

D. Ileocaecal →  Between small intestine and bowel.

Between the ileum and caecum is where the ileocecal valve is located. This regulates how food is transported from the small to the big intestine.

E. Pyloric sphincter →   Between duodenum and posterior stomach.

The pyloric sphincter is the sphincter that connects the duodenum with the posterior stomach. 

The opening and shutting of the pyloric sphincter regulate the passage of the partly digested acidic food known as chyme into the duodenum.