Human physiology . inehas no effect (Eossbach). That atropine acts not only on thenerves, but also on the gland cells, by a temporary paralysis ofthe secretory function, was elegantly demonstrated by Aubert inhis method of photographing the sweat-prints (Fig. 137). V. The Sebaceous Glands are distinguished from the Sudori-ferous, not only by their morphological structure, but still moreby the nature and process of their secretion. They are no lessplentifully distributed in the skin than the former. They arecompound tubular glands, the excretory duct of which runs alongthe canal of a hair folli
Human physiology . inehas no effect (Eossbach). That atropine acts not only on thenerves, but also on the gland cells, by a temporary paralysis ofthe secretory function, was elegantly demonstrated by Aubert inhis method of photographing the sweat-prints (Fig. 137). V. The Sebaceous Glands are distinguished from the Sudori-ferous, not only by their morphological structure, but still moreby the nature and process of their secretion. They are no lessplentifully distributed in the skin than the former. They arecompound tubular glands, the excretory duct of which runs alongthe canal of a hair follicle (Fig. 138). They are therefore most IX THE SKIN AND CUTANEOUS GLANDS 499 plentiful in the regions beset with hairs or down, and are few inthe parts destitute of hair, and entirely absent from the palm ofthe hand and sole of the foot. Externally the sebaceous glands are pear-shaped or are of unequal size, and are not in proportion with thethickness of the hair to which they are attached. Those of the. Fi . l:;7. - Sweat-prints showing suspension of secretion liy local application of atropine. ( area , to which a sponge soaked in atropine was applied, shows no , which was covered with belladonna plaster, also shows none. The centre, on which soaked in plain water was laid, remained unaltered. alae of the nose and the cheeks are larger than elsewhere, thoughconnected only with the fine, downy hairs of those parts (Fig. 139). The epithelial cells which line them are polygonal, and chargedwith fat-granules. The cavity of the gland is filled by a granularmass, the sebum, which lubricates the hairs and the stratumcorneum. Sebaceous glands are also found in the mucous membrane ofthe labia majora and minora of the vulva, in the clitoris, theglands and prepuce, and in the eyelid (Meibowmian glands). The 500 PHYSIOLOGY CIIA1.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectphysiology, bookyear1
