What are the four main types of exocrine glands? A: pineal, thyroid, pituitary, adrenal
B: digestive, mammary, sweat, sebaceous
C: synovial, serous, cutaneous, meninges
D: dermis, epidermis, parietal, visceral

The four main types of exocrine glands are digestive, mammary, sweat and sebaceous (option B).

Explanation:

The exocrine glands are mainly characterized by being able to secrete the substances they produce to the outside, producing non-hormonal substances.

The glands found in the stomach, breasts, sweat and sebaceous skin are a clear example of these glands.They are capable of producing and secreting substances such as gastric acids, mucus, breast milk, sweat and sebum.

Regarding the other options:

    A. Pineal, thyroid, pituitary and adrenal are endocrine glands and produce hormones.

    C. Synovial, serous, cutaneous, meninges are membranes that cover structures of the body, and are not glands.

    D. Dermis, epidermis, parietal and visceral are epithelia that cover the external part of the body, skin, and the most external portion of the internal organs.

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