Apocrine sweat gland

Apocrine sweat glands are sweat glands composed of a coiled secretory portion located at the junction of the dermis and subcutaneous fat, from which a straight portion inserts and secretes into the infundibular portion of the hair follicle. In humans, apocrine sweat glands are found only in certain locations of the body: the axillae (armpits), the areola of the nipples, and the genitoanal region.    Most of the human body contains eccrine sweat glands.  Apocrine sweat glands secrete a milky, viscous, odourless fluid which only develops a strong odour when it comes into contact with bacteria on the skin surface. (adapted from wikipedia)

Perianal region, Masson, 20X apocrine sweat gland U Mich Virtual Microscopy

The term apocrine sweat gland is a misnomer. While it was once thought that apocrine sweat glands were true apocrine glands, it is now known that they use merocrine excretion. However, they have retained the original name.

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