. A practical treatise on diseases of the skin, for the use of students and practitioners. t formed by the cells of the prickle-layerbelow and of the other layers of the epidermis, which successivelysurround this canal, narrow below and funnel-shaped above. Hencethe lumen of the sweat-pore, if such a term be permissible, is in freecommunication with the juice-spaces of the epidermis. The secretion of the coil-glands consists largely of globules of fatand granules of pigment. The function of the coil-glands, therefore,is plainly the lubrication of the skin with unguent, a task performedonly in
. A practical treatise on diseases of the skin, for the use of students and practitioners. t formed by the cells of the prickle-layerbelow and of the other layers of the epidermis, which successivelysurround this canal, narrow below and funnel-shaped above. Hencethe lumen of the sweat-pore, if such a term be permissible, is in freecommunication with the juice-spaces of the epidermis. The secretion of the coil-glands consists largely of globules of fatand granules of pigment. The function of the coil-glands, therefore,is plainly the lubrication of the skin with unguent, a task performedonly in small part by the sebaceous glands, and by them chiefly for thepilary covering of the body. The palms of the hands and the solesof the feet are thus lubricated with fat by the coil-glands. The total number of coil-glands in the body is estimated to be 44 DISEASES OF THE SKIN. between two and three millions, and the total length of the uncoiledglands about eight miles. These figures serve to give an approximateidea of their very great physiological importance, and of the extent Fig. Section of skin from the palm of the hand (hardened in Moellers fluid and treated with glacialacetic acid), magnified 300 diameters, showing epidermis and pars papillaris of the corium tra-versed by the excretory duct of a coil-gland terminating in a sweat-pore : a, stratum corneum ;a, its superficial layer, the cells in the upper and lower layers somewhat larger than those situ-ated between the two ; b, stratum lucidum ; c, stratum granulosum ; d, stratum mucosum ; e, retepegs ; /, interpapillary process of rete meeting duct of coil-glands ; g, g, papillae embraced by longprickles extending from lower palisade-layer of the rete; h, blood-vessels of papillae ; i, bundlesof connective-tissue fibres of pars papillaris; k, section of spiral duct of coil-gland and sweat-pore. ANATOMY AND PHYSIOLOGY OF THE SKIN. 45 to which violation of the rules of hygiene possesses interest from apathological point
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Keywords: ., bookauthorhydejamesnevins184019, bookcentury1800, bookdecade1890
