. Anatomy, descriptive and applied. Anatomy. THE FiALIVARY GLANDS 1227 that rest upon a basement membrane, and fibroelastic tunica [iropria. Tlie muscle coat consists of circularly arrancred smooth muscle tissue. The fibrous coat consists of fibrmlaslic tissue and serves to support the other coats. The salivary glands are mucous, serous, and mixed. The mucous glands secrete a thick viscid fluid and the cells of the acini stain lightly. The alveoli arc tubular in form and the cells large and of a columnar shape, cloudy to transparent, and may even he striated in appearance. At intervals peculia
. Anatomy, descriptive and applied. Anatomy. THE FiALIVARY GLANDS 1227 that rest upon a basement membrane, and fibroelastic tunica [iropria. Tlie muscle coat consists of circularly arrancred smooth muscle tissue. The fibrous coat consists of fibrmlaslic tissue and serves to support the other coats. The salivary glands are mucous, serous, and mixed. The mucous glands secrete a thick viscid fluid and the cells of the acini stain lightly. The alveoli arc tubular in form and the cells large and of a columnar shape, cloudy to transparent, and may even he striated in appearance. At intervals peculiar, darkly staining crescent-shaped cells or cell groups arc seen lielwccn the above epithelium and the basement membrane; these are the demilunes of Heidenhain or crescents of Gianuzzi (Fig. 959), by some regarded as mucous cells in the resting stage, and by others as distinctly separate cells. These glands are the small unnamed glands of lips, cheek, pharynx, cesophagus, and tongue (especially the glands of Nuhn and Blandin). Serous glands are those that secrete a thin, watery fluid, anrl the cells of the acini stain darkly. The acini arc grape-like and the cells are somewhat pyramidal in form, smaller than mucous cells, and possess richly granular protoplasm. These glands are the parotid and many small unnamed glands in the tongue and lips. Mixed glands are those in which some of the alveoli are tubular (mucous) and others grape- like (serous), representing both of the above varieties in one capsule. Here belong the sub- lingual and submaxillary glands. The arteries enter the capsule and divide into branches that enter the interlobular tissues; from these vessels branches enter the lobules and form capillary plexuses around the alveoli in close proximity to the basement membrane. The veins return the blood in vessels parallel to the arteries. The nerves enter with the vessels and ultimately form plexuses in the interlobular and intra- lobular tissue, the latter sending filame
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
