Crypts of Lieberkuhn are present in
- small intestine
- large intestine
- stomach
- oesophagus.
The Correct Option is A
Solution and Explanation
(a) Paneth cells : They are found particularly in the duodenum, in the bottom of crypts of. Lieberkuhn. These cells are rich in zinc and ? contain acidophilic granules. They probably secrete lysozyme.
(b) Argentaffin cells: They are also known as entero-chromaffin cells and are fairly common in duodenum, located among epithelial cells lining the crypts of Lieberkuhn. Argentaffin cells secrete secretin hormone and 5-hydroxytryptamine (5-HT).
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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.