Question

Pyloric sphincter is present between

• A. Stomach and duodenum
• B. Duodenum and ileum
• C. Ileum and caecum
• D. Ileum and large intestine

Answer 1

The correct option is A

Stomach and duodenum

The correct option is (A).

Explanation of correct option:

1. The pyloric sphincter is a flap present in between the stomach and the entry of the small intestine, i.e. duodenum.
2. This is placed in such a position that it restricts any kind of backflow of substances from the small intestine back to the stomach.

Explanation of incorrect options:

Option (B):

Duodenum and ileum are part of the same organ, i.e. small intestine, and have no obstruction.

Option (C):

The caecum is a part of the large intestine and connects with the ileum of the small intestine via the ileocecal sphincter.

Option (D):

The ileum and large intestine join at the junction called the ileocecal junction.

Final answer:

Pyloric sphincter is present between the stomach and duodenum.