. Anatomy, descriptive and applied. Anatomy. THE SKIN 1153 from the coriiim between the cells, and there is cement substance as well between them. The Corium, Cutis Vera, Dennis, or True Skin (Figs. 876 and 880) is a con- nective-tissue structure which arises from the mesoderm. It consists especially of connective tissue and elastic fibres; it contributes elasticity to the skin, and is the seat of the sense organs. The corium is composed of two layers, the papillary and the reticular. Duct of _'^' sweat ' ' ~ '. Adipose tiss Fig. 876.—Diagrammatic sectional view of the skin. (Magnified.) The s
. Anatomy, descriptive and applied. Anatomy. THE SKIN 1153 from the coriiim between the cells, and there is cement substance as well between them. The Corium, Cutis Vera, Dennis, or True Skin (Figs. 876 and 880) is a con- nective-tissue structure which arises from the mesoderm. It consists especially of connective tissue and elastic fibres; it contributes elasticity to the skin, and is the seat of the sense organs. The corium is composed of two layers, the papillary and the reticular. Duct of _'^' sweat ' ' ~ '. Adipose tiss Fig. 876.—Diagrammatic sectional view of the skin. (Magnified.) The superficial or papillary layer or corpus papillare of the corium (stratum papil- lare) lies just beneath the epidermis, contains the papilla?, and is composed of a network of fine bundles of fibrous tissue. The papilla; are composed of fine strands of connective tissue and elastic tissue. They project from the corium beneath the epidermis and enter into depressions of the epidermis. They vary greatly in size, averaging y^ of an inch in height and ^to" ^^^ ^^ '""^'^ '" width at the base. In the face, especially in the eyelids, they are insignificant. On the glans penis, the palms of the hands, and the soles of the feet, and in the nipples, they are large. In the palmar surfaces of the hands and fingers and the plantar surfaces of the feet and toes they produce permanent ridges (Fig. 879). A ridge is composed of two or more rows of papilh?, and the ducts of sweat glands emerge 73. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gray, Henry, 1825-1861; Spitzka, Edward Anthony, 1876-1922. Philadelphia, New York, Lea & Febiger
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
