Question

One of the following movements in our body is not completely involuntary. Identify it.

• A. Deglutition
• B. Peristalsis
• C. Systole of the ventricles
• D. Dilation of pupil of the eye

Answer 1

The correct option is A Deglutition

• Deglutition is the act or process of swallowing. There are three stages involved in this process, oral stage, pharyngeal stage, and oesophageal stage.
• The oral stage is voluntary in nature. The muscles are involved in mastication and the tongue helps in pushing the small ball in the throat region.

Thus, the correct answer is option A.