Question

Read the feature of cell layers in the wall of human intestine
a. It consist of circular and longitudinal smooth muscle.
b. Outer thin layer formed of mesothelium.
c. A layer formed of loose connective tissue and nerves.
d. Epithelium with mucus cells.
Identify the cell layers and arrange them outer to inner
order.

Answer 1

Answer:

answer is : The wall of alimentary canal possesses four layers- serosa, muscularis, sub mucosa, and mucosa. Serosa is the outermost layer and is made up of a thin mesothelium and connective tissue. Muscularis is formed by smooth muscles usually arranged into an inner circular and an outer longitudinal layer. Sub-mucosa layer is formed of loose connective tissues containing nerves, blood and lymph vessels. Glands are also present in sub-mucosa of duodenum. Mucosa is the innermost layer lining the lumen of the alimentary canal. Mucosa forms irregular folds (rugae) in stomach and villi in small intestine.

solution