Question:

Which of these is secreted by duodenum?

Updated On: Jun 7, 2022
  • Somatostatin
  • Secretin
  • Gastrin
  • GIP
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The Correct Option is B

Solution and Explanation

Secretin is a hormone secreted by the S-cells mainly in the wall of duodenum and some in jejunum, under stimulus of acidic food coming from stomach. It causes the pancreas to secrete alkaline pancreatic juice and stimulates bile production in the liver.
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Concepts Used:

Digestion and Absorption - Alimentary Canal

Digestion can be defined as the process of breakdown of large, insoluble and complex food molecules into smaller ones for its absorption and circulation in the body. This process involves the usage of a variety of digestive fluids and enzymes, including saliva, mucus, bile and hydrochloric acid, among others.

Read More: Digestion and Absorption

The alimentary canal is mainly referred to as the pathway by which food enters our body and moves out through the anus after digestion. It is a tube-like structure that starts from the mouth and ends in the anus. The alimentary canal plays a primary role in human digestion and is also termed as the digestive tract.

Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract.