MEDICAL
RECTUM AND ANUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The esophagus is lined with a liquid called ____
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spit.
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saliva.
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acid.
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mucus.
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Explanation:
Detailed explanation-1: -The esophagus is about 8 inches long, and is lined by moist pink tissue called mucosa. The esophagus runs behind the windpipe (trachea) and heart, and in front of the spine. Just before entering the stomach, the esophagus passes through the diaphragm.
Detailed explanation-2: -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.
Detailed explanation-3: -Submucosal glands, found in the airways, mouth, and gastrointestinal tract, also produce and release mucin and mucus.
There is 1 question to complete.