Glands of the skin or mucous membranes that secrete the substances they produce into ducts leading to a target body surface and ultimately to the outside of the body. Examples are sweat glands in the skin, lacrimal glands in eyelids, ...
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Glands which empty their hormone substances into the bloodsteam and from there to a targeted part of the body such as insulin produced by the pancreas and thyroxine produced by the thyroid gland. They are opposite exocrine glands of the ...
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