MEDICAL
RECTUM AND ANUS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The outermost layer of the alimentary canal is the ____
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submucosa
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serosa
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lumen
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mucosa
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Explanation:
Detailed explanation-1: -Above the diaphragm, the outermost layer of the digestive tract is a connective tissue called adventitia. Below the diaphragm, it is called serosa.
Detailed explanation-2: -The serosa is a single outer cell layer of tissue made of epithelial cells that envelop the uterus.
Detailed explanation-3: -Serous membranes have two layers. The parietal layers of the membranes line the walls of the body cavity (pariet-refers to a cavity wall). The visceral layer of the membrane covers the organs (the viscera). Between the parietal and visceral layers is a very thin, fluid-filled serous space, or cavity.
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