NEET PG DENTAL EXAM

HISTOLOGY

DIGESTIVE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Once the mouth has digested food, the food is called ____
A
Chyme
B
Bolus
C
Mush
D
None of the above
Explanation: 

Detailed explanation-1: -[1] After sufficient digestion in the oral cavity, the partially digested foodstuff, or bolus, is swallowed into the esophagus. No digestion occurs in the esophagus. After passage through the esophagus, the bolus will enter the stomach and undergo mechanical and chemical digestion.

Detailed explanation-2: -In digestion, a bolus (from Latin bolus, “ball") is a ball-like mixture of food and saliva that forms in the mouth during the process of chewing (which is largely an adaptation for plant-eating mammals). It has the same color as the food being eaten, and the saliva gives it an alkaline pH.

Detailed explanation-3: -Bolus is a semi-digested food which formed in the mouth. The process of intake of food inside the body through the mouth is known as ingestion. After ingestion, the solid hard materials are broken down into smaller pieces or chewed with the help of teeth.

Detailed explanation-4: -Towards the end of mastication, the tongue and roof of the mouth gather and shape the chewed food into a pellet called a bolus. Moisture and mucus bind and coat the bolus before it is pushed towards the back of the mouth and into the oropharynx (anterior portion of the throat).

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