MEDICAL
RECTUM AND ANUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mechanical only
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Chemical only
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Both mechanical and chemical
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None of the above
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Detailed explanation-1: -No digestion occurs in the esophagus. After passage through the esophagus, the bolus will enter the stomach and undergo mechanical and chemical digestion. Mechanical digestion in the stomach occurs via peristaltic contractions of the smooth muscle from the fundus towards the contracted pylorus, termed propulsion.
Detailed explanation-2: -The chemical digestion of proteins begins in your stomach. Carbohydrate and lipid digestion continues in the stomach (lipids are the chemical components of fat). Your stomach releases gastric juices that begin to break down all of the food you’ve eaten.
Detailed explanation-3: -Mechanical Digestion The large pieces of food that are ingested have to be broken into smaller particles that can be acted upon by various enzymes. This is mechanical digestion, which begins in the mouth with chewing or mastication and continues with churning and mixing actions in the stomach.
Detailed explanation-4: -Chyme is a thick semifluid mass of partially digested food and digestive secretions that is formed in the stomach and intestine during digestion.