What does the glandular tissue do​

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Glandular epithelial cells are specialized epithelial cells that secrete bodily products, sometimes called simply glands. Glands include two types: endocrine and exocrine. The glandular epithelium is a group of tissues, other than the covering and lining epithelium, which is specialized for the production and secretion of various macromolecules. Because of its primary function, the glandular epithelium is also called the secretory epithelium.

Explanation:

voluntary muscles are controlled by the cerebellum.

layer 3 is younger than layer 6.