why does the walls of oesophagus secrete mucus are slimmy substance
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Wall of oesophagus secretes mucus which is slimy substance so food can move easily through it ...
Wall of oesophagus secretes mucus which is slimy substance so food can move easily through it ...
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Mucus secreted by oesophagus is slimy for easy passage of food and this mucus adheres food into bolus so food is more easily transported..
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