. Elements of histology. Histology. 246 Elements of Histology. [ChaP:xxxi. the cells are polyhedral, and exactly similar to epithe- lial cells. They are separated from one another within the group by a thin interstitial cement-substance. Their resemblance with epithelium is complete. They are remnants of the epithelial masses of the Wolffian body of the foetus. 323. The seminal tubules (Fig. 137). — Within each compartment, above mentioned, lie. F;g. 137.—From a Section through the Testis of Dog. Showing three seminal tubules in cross section. In two of these the lining epithelium—seminal cell
. Elements of histology. Histology. 246 Elements of Histology. [ChaP:xxxi. the cells are polyhedral, and exactly similar to epithe- lial cells. They are separated from one another within the group by a thin interstitial cement-substance. Their resemblance with epithelium is complete. They are remnants of the epithelial masses of the Wolffian body of the foetus. 323. The seminal tubules (Fig. 137). — Within each compartment, above mentioned, lie. F;g. 137.—From a Section through the Testis of Dog. Showing three seminal tubules in cross section. In two of these the lining epithelium—seminal cells—is shown, and bundles of spermatozoa projecting into the lumen of the tubules. Between the tubules is connective tissue containing groups of polyhedral epithelial-like cells. numerous seminal tubules, twisted and convoluted in many ways, and extending from the periphery to near the corpus Highmori. The tubules, as a rule, are rarely branched; but in the young state, and especially towards the periphery, branching is not un- common. Each seminal tubule consists of a membrana pro- pria, a lining epithelium, and a lumen. The mem- brana propria is a hyaline membrane, with oval nuclei at regular intervals. In man it is thick and lamel- lated, several such nucleated membranes being super-. 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 Klein, E. (Edward), 1844-1925. Philadelphia : H. C. Lea's Son
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