ANATOMY

Detailed explanation-1: -Eccrine sweat glands occur over most of the body and open directly onto the skin’s surface.

Detailed explanation-2: -Eccrine sweat is mostly water and NaCl, but also contains a mixture of many other chemicals originating from the interstitial fluid and the eccrine gland itself.

Detailed explanation-3: -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-4: -Both eccrine and apocrine sweat glands originate from the epidermis. Eccrine glands begin as epithelial cellular buds that grow into the underlying mesenchyme. The glandular secretory components then form by elongation of the gland and coiling of the ends.