Question

Alimentary canal is lined with glandular epithelium ,what is the significance of presence of glandular epithelium in alimentary canal?​

Answer 1

THIS EPITHILIUM CONTAINS SOME CELLS

WHICH SECRETES MUCUS WHICH MAKES THE INNER LINING OF THE STOMACH AMD PROTECTS THE STOMACH FROM EXCESS SECRETION OF ACID AND FROM GERMS AS WELL

Answer 2

The glandular epithelium produces mucous.

Explanation:

• A layer of epithelial cells which are interspersed by secretory cells (endocrine or exocrine) form a Glandular epithelium.
• The alimentary canal is lined by a glandular epithelium which are interspersed by mucus secreting cells.
• These mucus secreting cells are called the Goblet cells.
• The mucus has many function :

1. It keeps the alimentary canal moist so that the bolus and the digested food can easily pass through it without any friction. Hence the canal lining is protected from getting ruptured.
2. In the stomach it protects the epithelial cells from getting destroyed by the corrosive action of hydrochloric acid.
3. It mixes with the food and keeps it soft so that the digestive enzymes can easily act on them.