204 



SPECIAL HISTOLOGY 



§ 66. 



la every sudoriparous gland (fig. 45, fig. 78), we may 

 distinguish, the glandular coil (fig. 78 a, fig. 75 g), or the 



proper gland, from the 

 excretory duct or sudo- 

 riparous canal (fig. 45 h, 

 fig. 78 b). The former is 

 a rounded or elongated 

 corpuscle of a yellowish 

 or transparent yellow- 

 ish-red colour, which in 

 general measures I — V" ; 

 but on the eyelids, the 

 integument of the penis, 

 scrotum, nose, convex 

 side of the concha of 

 the ear, on the other 

 hand, not more than 

 ^ — Jj"'; whilst on the 

 areola of the nipple and in its neighbourhood, at the root of 

 the penis, and between the scrotum and perineum, it attains as 

 much as ' "', and in the hairy parts of the axilla reaches as 

 much as i"' — 1'" — 1§'" in thickness, and 1 — 3'" breadth. 



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

 meshes of the pars reticularis of the corium, sometimes more 

 superficially, sometimes deeper, surrounded by fat and loose 

 connective tissue, together with or among hair-sacs. They 

 occur more rarely in the subcutaneous connective tissue, or at 

 its boundaries, as for example in the axilla, to some extent in 

 the areola mamma, 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, 

 and at tolerably equal distances apart ; in other places they arc 

 met with, usually in a regular manner, singly or in pairs, in 

 each mesh of the corium, although, according to Krausc, 

 spaces of \ — i"' line exist, where they are totally absent, or 



78. A sudoriparous coil and its vessels, x 35 : a, glandular coil ; b, excretory 

 duct or sweat duct ; c, vessels of a glandular coil, according to Todd and Bowman. 



