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Peritubular tissue of the quail (A), displaying several (1–6) layers of myoid cells, separated by basal lamina-like material (arrowheads); arrows, pinocytic vesicles; C, collagen fibres; L, basal lamina; S, seminiferous epithelium. (B) Higher power view of myoid cells. Stars, microfilaments; D, cytoplasmic densities; G, Golgi complex; M, mitochondrion; N, nucleus; R, rough endoplasmic reticulum.
