. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Racemose or duodenal gland, as seen in a vertical section of the duodenum. Magnified 40 diameters. a, intestinal tubes; b, muscular stratum of the mucous membrane ; c, c, acini of the duodenal gland, which occupies the submucous areolar tissue ; d, transverse layer of the muscular coat ; e, longitudi- nal layer of the muscular coat ; f, peritoneal tunic of the bowel. ventes are not permeated by any such ducts. But in all other parts of its surface, the general mucous membrane is pretty evenly Fig. Diagram of the ar
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Racemose or duodenal gland, as seen in a vertical section of the duodenum. Magnified 40 diameters. a, intestinal tubes; b, muscular stratum of the mucous membrane ; c, c, acini of the duodenal gland, which occupies the submucous areolar tissue ; d, transverse layer of the muscular coat ; e, longitudi- nal layer of the muscular coat ; f, peritoneal tunic of the bowel. ventes are not permeated by any such ducts. But in all other parts of its surface, the general mucous membrane is pretty evenly Fig. Diagram of the arangement of the lobules of a duode- nal (jland. a, duct of the lobule; b, collateral branch of this duct ; c, the acini around such a duct in situ ; d, the same separated, and the duct unfolded. studded by their apertures, two or more some- times passing through it in company with each other. Hence each of these glands may be briefly described as a tube, which branches repeatedly, and ends in very minute canals, with some- what vesicular extremities. The whole of this involution of mucous membrane is composed of the usual elements ; namelv, limitary membrane and epithelium. The former constituent offers no peculiarity worthy of note. The latter consists of a single tesselated layer of cells. These have a poly- gonal and slightly flattened shape, which some-. 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 Todd, Robert Bentley, 1809-1860. London, Sherwood, Gilbert, and Piper
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