What is the phase called, when the food is ready for swallowing, the upward and backward pressure of the tongue against the palate, drags or moves it

GASTROINTESTINAL PHYSIOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

What is the phase called, when the food is ready for swallowing, the upward and backward pressure of the tongue against the palate, drags or moves it <voluntarily> posteriorly?

A	voluntary swallowing phase
B	pharyngeal phase of swallowing
C	gastric phase of swallowing
D	voluntary phase of propulsion

Explanation:

Detailed explanation-1: -The tongue moves upward and backward against the palate, pushing the bolus to the back of the oral cavity and into the oropharynx. Other muscles keep the mouth closed and prevent food from falling out. At this point, the two involuntary phases of swallowing begin.

Detailed explanation-2: -Oral preparatory stage The oral cavity is sealed posteriorly by the soft palate and tongue contact to prevent the liquid bolus leaking into the oropharynx before the swallow. There can be leakage of liquid into the pharynx if the seal is imperfect, and this leakage increases with aging.

Detailed explanation-3: -Normal swallowing can be divided into four stages, the oral preparatory stage, the oral stage, pharyngeal stage and esophageal stage.

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