Deglutition

Q.

Regarding the assertion and reason; choose the correct option.
Assertion [A]: Muscular contraction in the alimentary canal is called peristalsis.
Reason [R]: Deglutition has three phases - (Oral phase, Pharyngeal phase and Esophageal phase).

1. Assertion [A] is True and Reason [R] is False.

2. Reason [R] is True and Assertion [A] is False.

3. Assertion [A] is True and Reason [R] is True, and [R] is a correct explanation to [A].

4. Assertion [A] is True and Reason [R] is True, but [R] is not a correct explanation to [A].

Q.

Movement is not regulated by sphincter or valve during

1. Movement of food from oesophagus to stomach

2. Release of bile into duodenum

3. Movement of chyme

4. Movement of bolus into pharynx