OF THE GLANDS OF THE SKIN. 



199 



IV. OF THE GLANDS OF THE SKIN. 



Fig. 78. 



A. OF THE SUDORIPAROUS GLANDS. 



65. The Sudoriparous Crlands consist of a single delicate, more or 

 less convoluted tube, which secretes the sweat. They are formed over 

 the whole surface of the skin, with the exception of the concave side of 

 the concha of the ear, of the external auditory meatus, the glans penis, 

 one lamella of the prepuce, and a few other localities ; and open upon 

 it by numerous fine apertures. 



66. In every sudoriparous gland (Fig. 45, Fig. 78), we may distin- 

 guish, the glandular coil (Fig. 78 a, Fig. 75 g), or the proper gland, 

 from the excretory duct or 

 sudoriparous canal (Fig. 45 

 h, Fig. 78 b). The former is 

 a rounded or elongated corpus- 

 cle of a yellowish or transpa- 

 rent yellowish-red color, which 

 in general measures ^\ of a 

 line ; but on the eyelids, the 

 integument of the penis, scro- 

 tum, nose, convex side of the 

 concha of the ear, on the 

 other hand, not more than 

 iV-tjz of a line ; whilst on 

 the areola of the nipple and 

 in its neighborhood, at the 

 root of the penis, and between 

 the scrotum and perinseum, it attains as much as J a line, and in the 

 hairy parts of the axilla reaches as much as J-1-1J line in thickness, 

 and 13 lines in breadth. 



The sudoriparous glands, in most cases, are lodged in the meshes of 

 the pars reticularis of the corium, sometimes more superficially, some- 

 times deeper, surrounded by fat and loose connective tissue, together 

 with or among hair-sacs. They occur more rarely in the subcuta- 

 neous connective tissue, or at its boundaries, as for example in the 

 axilla, to some extent in the areola mammce, in the eyelids, penis, and 

 scrotum, the palm of the hand and sole of the foot. In the two last- 

 named localities, they are disposed in rows under the ridges of the cutis, 



FIG. 78. A sudoriparous coil and its vessels; magnified 35 diameters: a, glandular coil; 

 6, excretory duct or sweat duct ; c, vessels of a glandular coil, according to Todd and Bow- 

 man. 



C. " 



