Physiology of the skin

The skin is the main interface between individual and environment. It therefore has essential physiological functions which allow to live safely, even under changing external conditions might pose potential threats. most important function of protection against various forms noxious stimuli including physical chemical trauma, micro-organisms radiation. its appendages such as hair are also vital for thermoregulation. Several modalities sensation mediated via allowing recognize context their relationship a significant water storage organ, particularly in hypodermis layer. Although it mainly acts barrier, does have some ability absorb substances, lipophilic compounds. Emotions fright, anger or joy can be expressed skin, due changes blood supply, position hairs, movements those muscles insert directly into skin. Synthesis vitamin D occurs sun-exposed major site production normal health. surgeons understand order when clinical problems occur appreciate how patients with disordered physiology likely respond traumatic surgical injury.