Archive image from page 1165 of Cunningham's Text-book of anatomy (1914). Cunningham's Text-book of anatomy cunninghamstextb00cunn Year: 1914 ( An alveolus with secreting cell Connective tissue Duct Most of the glands of Crescent of Gianuzzi th? hod7 are examples of this variety— the sali- vary glands, the small glands of the mouth, Fig. 895.—Section of a Serous Gland on the left, a Mucous Gland tongue, pharynx, ceso- on the eight side (Bohm and v. Davidoff.) phagus, etc. In the serous gland the granular secreting cells and the centrally-placed nucleus -A- compound acinous should be no
Archive image from page 1165 of Cunningham's Text-book of anatomy (1914). Cunningham's Text-book of anatomy cunninghamstextb00cunn Year: 1914 ( An alveolus with secreting cell Connective tissue Duct Most of the glands of Crescent of Gianuzzi th? hod7 are examples of this variety— the sali- vary glands, the small glands of the mouth, Fig. 895.—Section of a Serous Gland on the left, a Mucous Gland tongue, pharynx, ceso- on the eight side (Bohm and v. Davidoff.) phagus, etc. In the serous gland the granular secreting cells and the centrally-placed nucleus -A- compound acinous should be noted. The relatively clear cells, with the dark crescents of (racemose) gland is com- Gianuzzi, are distinctive in the mucous gland. posed of a main duct which branches and re- branches more or less freely according to the size of the gland. The terminal divisions of the ducts end finally in specialised secreting parts, the acini or alveoli, quite distinguishable from the ducts or conducting parts. In typical acinous glands the acini or alveoli are distinctly saccular ; in other glands, such as the pancreas, this is not the case, the acini being long and narrow. Accordingly, the term alveolo- or acino-tubular has been introduced and applied to glands of this latter type, which is usually made to include the pancreas, and Brunner's duodenal It should be added that the term acino-tubular is by some authors used exclusively instead of acinous for all racemose glands. The foregoing may be summarised in tabular form thus :— I. IT. Simple glands.—Duct undivided. (a) Simple tubular (undilated at end)— intestinal glands and certain gastric glands. (b) Simple alveolar (dilated at end)—not met with in alimentary canal. Compound glands.—Duct divided. (a) Compound tubular, branched elongated tubes, no acini— most gastric glands. (b) Compound acinous or alveolar (racemose glands), branched duct with saccular acini on terminal branches— salivary glands;
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