The sweat glands: scent glands (apocrine sweat glands)
A special form of the sweat glands are the apocrine sweat glands (Glandulae sudoriferae apocrinae), the so-called scent glands.
The scent glands are unbranched tubular glands individual. However, they do not occur all over the body, but rather only in certain hairy skin areas (armpits, nipples, genital and anal). Scent glands are located in the subcutaneous adipose tissue and are closely related to the hair follicles in the ducts they open. The secretion of the scent glands leads along the hair shaft to the skin surface and mixes on this path with sebum, which is also given to the hair shaft.
Scent glands are not active from birth - only after puberty, when sexual maturity occurs, they take in their work. Scent glands secrete mainly in response to emotional stimuli (Such as anger, pain, fear, sexual reactions) - but also in response to sex hormones - Perfumes with pheromone-like effect out. Pheromones are molecules (such as pheromones) that living beings allow an exchange of information at the biochemical level.