HISTOLOGY
DIGESTIVE SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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spit.
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saliva.
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acid.
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mucus.
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Detailed explanation-1: -The mucosa has glands that secrete mucus to keep the lining moist and well lubricated to ease the passage of food. Upper and lower esophageal sphincters control the movement of food into and out of the esophagus.
Detailed explanation-2: -The esophagus is about 8 inches long, and is lined by moist pink tissue called mucosa.
Detailed explanation-3: -The innermost lining of the esophagus, the mucosa remains moist to help food pass to the stomach. Submucosa. This layer contains glands which produce mucus that helps to keep the esophagus moist.
Detailed explanation-4: -Mucus is a protective substance that is secreted from multiple areas in the body such as the mouth, sinuses, throat, lungs, and stomach. Mucus is produced by the goblet cell of the gastrointestinal tract. It is a glycoprotein.