Higistamisnärvid
Higistamisnärvid, also known as sweat glands or sudoriparous glands, are small, tubular structures in the skin that produce sweat. These glands are a vital part of the body's thermoregulation system, helping to cool the body down through evaporation. There are two main types of sweat glands: eccrine and apocrine. Eccrine glands are found all over the body and secrete a watery, odorless fluid directly onto the skin's surface. They are primarily responsible for regulating body temperature. Apocrine glands, on the other hand, are larger and are found mainly in the armpits and groin area. They secrete a thicker, milky fluid into hair follicles, which is thought to be involved in pheromone release. The secretion of sweat is controlled by the autonomic nervous system, specifically by the sympathetic nervous system. When the body's temperature rises, nerve signals stimulate the sweat glands to produce sweat. Emotional stress, certain foods, and some medications can also trigger sweating. While sweat itself is odorless, bacteria on the skin can break down the organic compounds in apocrine sweat, leading to body odor. The proper functioning of higistamisnärvid is crucial for maintaining a stable internal body temperature and for overall skin health.