Explain protective and excretory function, Science

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Explain Protective and Excretory Function

Protective function: Large quantity of mucin is secreted by gastric glands. Mucin lubricates the food bolus (a mass of chewed food) and also gives a protective layer over the gastric mucosa.

Excretory function: Certain toxins, heavy metals like lead and some alkaloids are excreted through the gastric juice.

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