Question

In human beings, the wall of small intestine contains glands which secrete ‘X’. Here ‘X’ is also known as

Answer 1

The 'X' here is referred to the mucous.

Intestinal wall secretions

• The walls of the intestine contain microscopic cells called goblet cells which secrete mucous in the small intestine. The mucous is a sticky substance which forms a secondary protective layer above the intestinal wall
• Mucous protects the walls of the intestine from damage caused by hydrochloric acid which is also secreted in the intestine.
• Mucous regulates the optimum pH of the intestinal environment for digestion to occur.
• The mucous secretions are controlled by the nervous system through stimulatory signals sent to the Leiburkuhn's glands.

Answer 2

Answer:

Digestive enzymes like