. The American journal of anatomy. ount of their structure, be properly designated cardiac glands. The epithelial andglandular portions of such a section are represented in Fig. 9. Thegland nearest the Grenzfalte is usually a simple crypt lined by cellslike those of the surface epithelium, but not infrequently there are twoor three glandular cells at the lower end of the tubule. These cellsexhibit the usual structure of mucous cardiac gland cells and their con-tents stain readily in mucicarmine and muchajmatein. The simplecrypt above described does not occur with the same frequency along the G
. The American journal of anatomy. ount of their structure, be properly designated cardiac glands. The epithelial andglandular portions of such a section are represented in Fig. 9. Thegland nearest the Grenzfalte is usually a simple crypt lined by cellslike those of the surface epithelium, but not infrequently there are twoor three glandular cells at the lower end of the tubule. These cellsexhibit the usual structure of mucous cardiac gland cells and their con-tents stain readily in mucicarmine and muchajmatein. The simplecrypt above described does not occur with the same frequency along the Grenzfalte as the other glands, and if serial sections are not exam-ined may be readily overlooked. The transition between these cells, when present, and the surfaceepithelium is usually abrupt, but this probably is due to the shortnessof the glands. The parietal and ferment-forming chief cells make theirappearance in the third or^fourth tubule, the former being usually thefirst to appear. First fundusgland Chief cell of-bodyofgUnd. ^^ Stratified epitbelh., ,^ of Grenzmembran Cardiac Glands Fig. 9. Section across the junction of the right and left divisions ofthe stomach of Mus musculus. x 500. Iron haematoxylin. E. E. Bensley 131 The limited cardiac gland area extends all along the junction of thetwo divisions of the stomach, separating the stratified epithelinm fromthe glandular area. The stomach of the American water-rat or Muskrat. Fiber Jibethicus,resembles closely in structure that of Arvicola arvalis as described byEetzius, 41, Toepfer, 91, and others. The stratified epithelium Avhichis confined in the mouse to the left division of the stomach, in the musk-rat passes over into the right division, replacing the glands of the lessercurvature, ventral and dorsal surfaces and most of the pyloric fundus glands are confined to a small isolated oval area on thesummit of the greater curvature, surrounded on all sides by a non-glandular mucous membrane covered by tratif
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