PERSPIRATION
Perspiration plays a capital role in the temperature control of the man, it enables him to maintain its temperature stable, in spite of the variations of the external medium.
I) GLANDS OF SUDATION :
There are two varieties of sweat glands: the glands eccrines and the glands apocrines. Only the glands eccrines take part in the temperature control. They are the prerogative of the man contrary to the odoriferous glands apocrines whose sexual role is divided with the remainder of the animal world.
- The glands eccrines:
Three million glands eccrines are distributed on all the skin except for the anal, oral and genital areas.
a) Histology:
They are wound into a ball simple glands exocrines.
They comprise:
- a secretary portion represented by a tube extremely circumvented and wound into a ball on itself located in the major area of derma. Its structure is made of a simple cubic epithelium, the cells rest on a basal blade from which they are separated by myoepitheliales cells .
- a channel excretor gaining the surface of the skin by a helicoid way. In its intradermal portion it is about a channel whose wall is made of a cubic epithelium laminated Bi. In its way
epidermique the channel excretor will intra does not have a proper wall. Its average diameter is five to ten microns.
b) Vascular support:
It is rich, coming from a hypodermic small artery which is divided into small branches which form the
meshes of a net around the secretary portion of sweat gland.
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