Eccrine sweat gland duct component (None (no widely accepted standard abbreviation specific to the duct component; general abbreviation for the gland is "ESG," but this does not refer specifically to the duct segment))

The **eccrine sweat gland duct component** refers to the portion of the eccrine sweat gland that forms a conduit for sweat, carrying secretions from the secretory coil in the dermis to the surface of the skin. Structurally, the duct is composed of stratified cuboidal epithelial cells and is responsible for both transporting sweat and modifying its composition through reabsorption of electrolytes such as sodium and chloride. The duct is coiled in the dermis, straightens as it ascends, and traverses the epidermis to open at the sweat pore. Unlike the secretory portion, the duct segment does not contain myoepithelial cells. Dysfunction of the duct (e.g., in cystic fibrosis or hyperhidrosis) can disrupt normal sweat production or electrolyte balance. However, the duct as a tissue structure is not considered a molecular target in drug discovery or therapy.

Other names

Eccrine sweat gland ductSweat gland duct (eccrine type)Duct of eccrine gland

None specific to the duct component as a drug target. Drugs that reduce sweating act upstream (e.g., anticholinergics inhibit acetylcholine-mediated stimulation of the entire gland) rather than on ductal duct cell biology.