A textbook of obstetrics . mmary glands, as their namedenotes, are glandular organs, only reaching their full develop-ment, as a rule, in the female ; situated, usually, toward the lateral aspect of the pectoral region ; occupying the space boundedabove by the third and below by the sixth rib, to the inner sideby the ah^c of the sternum, to the outer side by the axillaryline. They arc derived from the epiblastic layer o\ the blasto-dermic membrane, and belong essentially to the skin, as do the oo4 LABOR AND THE PUERPERIUM. sweat and sebaceous glands. They are closely akin to thelatter, occurri
A textbook of obstetrics . mmary glands, as their namedenotes, are glandular organs, only reaching their full develop-ment, as a rule, in the female ; situated, usually, toward the lateral aspect of the pectoral region ; occupying the space boundedabove by the third and below by the sixth rib, to the inner sideby the ah^c of the sternum, to the outer side by the axillaryline. They arc derived from the epiblastic layer o\ the blasto-dermic membrane, and belong essentially to the skin, as do the oo4 LABOR AND THE PUERPERIUM. sweat and sebaceous glands. They are closely akin to thelatter, occurring in rare instances on indifferent parts of thebody, as the axilla, the abdomen, or even the thighs, where asebaceous gland has undergone a specialized development. Inthe female they are hemispherical in shape ; they are held intheir normal position upon the pectoral muscles by the super-ficial fascia, which splits into two layers, one running above,the other below, the breast. Externally, a little below the middle WfMiPl. c^-gH Fig. 197.—CE, Cuboidal epithelial cells ; F, fat globules stained black withosmic acid, and seen both in the cells and in the central cavity of the acini ; CJ\connective-tissue frame with blood-vessels. Magnified 6oodiameters (C. Heitzmann).
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
