Problem 82 - Objective Biology for NEET

Question

The bolus formed in buccal cavity conveyed into pharynx and then esophagus by the process is called (a) Peristalsis (b) Emesis (c) Deglutition/swallowing (d) Dysagglutination

Step-by-Step Solution

Answer

The process by which the bolus formed in buccal cavity is conveyed into the pharynx and then esophagus is called deglutition or swallowing (c).

Step 1: Define Each Term

Peristalsis refers to a series of wave-like muscle contractions that moves food to different processing stations in the digestive tract. Emesis is the medical term for vomiting - forceful expulsion of stomach contents through the mouth. Deglutition, or swallowing, is the process of making involuntary muscle movements to guide food along the digestive tract. Dysagglutination is not a term related to digestion, so it can be eliminated.

Step 2: Identify the Relevant Process

The bolus formed in the buccal cavity needs to be moved into the pharynx and then the esophagus. This process involves muscular contractions, but not forceful expulsion of stomach contents. So, the process being asked about is not emesis, but rather seems to involve a series of contractions.

Step 3: Choose the Correct Term

Given the nature of the process being described and the options that are left, deglutition or swallowing, seems to be the correct answer. It is the scientific term for the process that guides food or drink from the mouth to the stomach, passing though the pharynx and then the esophagus.