MICROANATOMY

Detailed explanation-1: -Humans have three different types of sweat glands: eccrine, apocrine, and apoeccrine. Eccrine sweat glands are abundantly distributed all over the skin and mainly secrete water and electrolytes through the surface of the skin.

Detailed explanation-2: -Eccrine glands form a thermoregulatory organ and secrete primarily water that contains electrolytes. We focus on the eccrine glands in this review. An individual can secrete up to 4 l of eccrine sweat in an hour (3), cooling down body temperature as necessary.

Detailed explanation-3: -Eccrine sweat is clear, odorless, and is composed of 98–99% water; it also contains NaCl, fatty acids, lactic acid, citric acid, ascorbic acid, urea, and uric acid.

Detailed explanation-4: -A type of simple sweat gland that is found in almost all regions of the skin. These glands produce sweat that reaches the surface of the skin by way of coiled ducts (tubes).