a-short-review-of-histology

Skin Appendages: Sweat Glands:

Eccrine sweat glands are simple coiled tubular glands which open at the skin surface
They produce a watery secretion which plays an important role in thermoregulation
The secretory part of the gland is located in the dermis and is coiled
The duct is initially coiled, like the secretory portion of the gland, but then follows a relatively straight course towards the epidermis
The duct ends at the junction of the epidermis and the dermis
From there, the secretions reach the surface of the skin by passing through a spiral channel running between the cells of the epidermis
Once released on the surface of the skin the sweat evaporates and cools the surface
Eccrine sweat glands are widely distributed in the skin although they are absent from a few regions such as the glans penis
The secretory part of the gland is located in the dermis and is coiled
Eccrine sweat glands are innervated by the sympathetic nervous system
The post ganglionic neurones which innervate eccrine sweat glands are cholinergic and not adrenergic as is usually found with this part of the nervous system

Diagram of Sweat Gland: