What is the role of mucin secreted by mucous glands in the mouth?

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Multiple Choice

What is the role of mucin secreted by mucous glands in the mouth?

Mucin, a glycoprotein from mucous glands, thickens saliva to create a lubricating film in the mouth. This lubrication coats the food as you chew, helping to bind it into a soft, swallowable bolus and making the food soggy and wet. It isn’t an enzyme, so it doesn’t digest fats, break down starches, or assist in mineral absorption—those roles belong to other components of saliva and the digestive system.

Mucin, a glycoprotein from mucous glands, thickens saliva to create a lubricating film in the mouth. This lubrication coats the food as you chew, helping to bind it into a soft, swallowable bolus and making the food soggy and wet. It isn’t an enzyme, so it doesn’t digest fats, break down starches, or assist in mineral absorption—those roles belong to other components of saliva and the digestive system.

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