Figure 7. Transmission electron micrograph of Spermatozoa within cytoplasm of principal cells of epididymis. Al: autolysosome; G: Golgi complex; L: lysosome, Mit: mitochondria, Sp: spermatozoa (H: head, Mid: midpiece, T: tail). Rectangular area showed enlarged area. Scale bar: (A) 5 μm and (B) 5 μm and 2 μm.