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The amount of sweat glands varies across the human body, being highest in hand and foot regions (200–600 sweat glands per cm 2). [19] The response of the skin and muscle tissue to external and internal stimuli can cause the conductance to vary by several microsiemens. A correctly calibrated device can record and display the subtle changes. [21]
Initially, within the eccrine glands, sweat has a high concentration of Na + ions. The Na + ions are re-absorbed into the tissue via the epithelial sodium channels (ENaCs) that are located on the apical membrane of the cells that form the eccrine gland ducts (see Fig. 9 and Fig. 10 of the reference). [9]
Sweat glands, also known as sudoriferous or sudoriparous glands, from Latin sudor 'sweat', [6] [7] are small tubular structures of the skin that produce sweat. Sweat glands are a type of exocrine gland , which are glands that produce and secrete substances onto an epithelial surface by way of a duct .
See also sweat gland, eccrine sweat gland and Autonomic nervous system.. The ESC measurement relies on the particularities of the outer-most layer of the human skin, the stratum corneum (SC), which consists of a lipid corneocyte matrix crossed by skin appendages (sweat glands and their follicles) as described in Electrical properties of skin at moderate voltages: contribution of appendageal ...
The eccrine sweat glands are distributed over much of the body and are responsible for secreting the watery, brackish sweat most often triggered by excessive body temperature. Apocrine sweat glands are restricted to the armpits and a few other areas of the body and produce an odorless, oily, opaque secretion which then gains its characteristic ...
Sudomotor function refers to the autonomic nervous system control of sweat gland activity in response to various environmental and individual factors. Sweat production is a vital thermoregulatory mechanism used by the body to prevent heat-related illness as the evaporation of sweat is the body’s most effective method of heat reduction and the only cooling method available when the air ...
Electrodermal activity describes changes in the skins ability to conduct electricity. EDA used to be known as the galvanic skin response, which is the combination of the changes in the galvanic skin resistance and galvanic skin potential.
Merocrine is the most common manner of secretion. The gland releases its product and no part of the gland is lost or damaged (compare holocrine and apocrine). The term eccrine is specifically used to designate merocrine secretions from sweat glands (eccrine sweat glands), [1] although the term merocrine is often used interchangeably. [2] [3]