Scent Glands

Scent glands are only found in the armpits, in the region of the nipples, the mons veneris (mount of Venus), the labia majora (large lips of the vagina) and the anal region. They have no function in regulating body temperature. The glands themselves (diameter: 4 mm) lie in the subcutis and empty into the hair follicles. The secretion of the scent glands is alkaline and thick. Until being secreted on the surface, it is odourless. The characteristic smell is caused by bacterial decomposition on the surface of the skin. The activity of the scent glands begins in puberty, and in women depends on hormonal fluctuations (period). These apocrine sweat glands are controlled by (adrenergic) nerves. Unlike the acidic secretion of the sweat glands, the alkaline secretion of the scent glands does not provide any protection from bacterial infections. This is why abscesses frequently occur in the area of the sweat glands in the armpits.

Sweat Glands

Sweat glands occur nearly all over the skin. They are only absent in the red of the lips and the glans penis. They occur in particularly large numbers on the forehead, the palms of the hands and the soles of the feet (400 per cm²). Altogether, the body has about 2 million sweat glands. The end section (diameter: 4 mm) is curled up and is located at the junction between the dermis and subcutis. The excretory duct then extends to the surface, the end part winding through the epidermis.ABB.10 Sweat is a filtrate of blood and contains only little protein. It consists of 99 % water, is very runny, and is acidic (pH 4 – 6.8). In terms of ions, it contains above all sodium chloride, but also potassium and magnesium chloride, urea, amino acids, ammonia, uric acid, vitamins and traces of medication. Foodstuffs (e.g. garlic) are also sometimes excreted in the sweat. Sweat glands play an important role in …