Figure 2114

Diagram of organization of seminiferous epithelium in humans and other species, a. In subhuman species, a particular cellular association occupies varying lengths along the tubule. Therefore, in a typical cross section only a single cellular association is observed, b. In humans, cellular associations occur in irregularly shaped areas along the tubule, and therefore, a cross section typically shows two or more cellular associations. (Modified from Dym M. In: Weiss L, ed. Cell and Tissue Biology: A Textbook of Histology. 6th ed. Baltimore: Urban a Schwarzenberg, 1988.)

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