MEDICAL
RECTUM AND ANUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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bolus
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chyme
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bile
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feces
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Detailed explanation-1: -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-2: -Mastication (chewing), in which food is crushed and mixed with saliva to form a bolus for swallowing, is a complex mechanism involving opening and closing of the jaw, secretion of saliva, and mixing of food with the tongue.
Detailed explanation-3: -A food bolus is formed as food is chewed, lubricated with saliva, mixed with enzymes and formed into a soft cohesive mass. 5 The bolus remains in the oral cavity (mouth) until the process of swallowing begins.