Question

In case of human, all are the factors which stimulate saliva secretion, except

• A. Presence of food in oral cavity
• B. Sight stimulus and smell of food
• C. Parasympathetic stimulation
• D. Vagal strimulation

Answer 1

The correct option is D Vagal strimulation

The presence of food in mouth and it contacts with the taste buds stimulates salivary secretion.

A slight stimulus of a smell of food may also stimulate salivation.

The parasympathetic aspect of the facial nerve controls the secretion of the sublingual and submandibular salivary glands.

Vagus nerve controls other aspects of the gut activity.

So, the correct option is 'Vagal stimulation'.