. A practical treatise on diseases of the skin, for the use of students and practitioners. he skin before those more superficially disposed,as their mutual relations will thus be made clearer. Subcutaneous Tissue. The subcutaneous tissue is differentiated from the corium betweenthe third and the fourth month of foetal life. It is a structure servinga mechanical purpose as a receptacle for fat, and for the support of 20 DISEASES OF THE SKIN. vessels and nerves pacsing from the tissue beneath to the corium,which lies next above it. It contains, also, coil-glands, some of thehair-follicles more d
. A practical treatise on diseases of the skin, for the use of students and practitioners. he skin before those more superficially disposed,as their mutual relations will thus be made clearer. Subcutaneous Tissue. The subcutaneous tissue is differentiated from the corium betweenthe third and the fourth month of foetal life. It is a structure servinga mechanical purpose as a receptacle for fat, and for the support of 20 DISEASES OF THE SKIN. vessels and nerves pacsing from the tissue beneath to the corium,which lies next above it. It contains, also, coil-glands, some of thehair-follicles more deeply seated than their fellows, and Pacinian cor-puscles. There is no distinct boundary-line between the upper limitsof the subcutaneous tissue and the overlying corium, to which it pro-jects columnar masses of fat, extending obliquely to the coil-glands andthe hair-follicles above, often with lateral, horizontally disposed pro-longations of similar shape. It is built up of loose connective-tissuebundles, prolonged from the aponeuroses, fasciae, and the membraneslying beneath. Fig. Subcutaneous fat-tissue, the fat having been extracted by turpentine : B, bundles of fibrousconnective tissue, carrying injected blood-vessels ; C, capsules of fat-globules, with oblong 500 diameters. (After Heitzmann.) The subcutaneous tissue is firmly attached to the skin over theextensor surfaces of the articulations, the palms, the soles, and thegroins by short, coarse bundles, between which are single or multiloc-ular spaces lined with endothelia, secreting a mucoid fluid. Thesespaces are the bursse mucosae. Elsewhere, as in the eyelids, the penis,the scrotum, and the auricle of the ear, the attachment to the skin isby loose, delicate connective tissue, containing no fat-globules. Allother fibrous tracts are arranged obliquely; they admit, by their exten-sion, of various degrees of pliability, and inclose rhomboidal spacescontaining more or less numerous fat-globules. These
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