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Sperm Morphology and Ultrastructure. A mature spermatozoon is a highly differentiated singlspermatozoidee cell that comprises head, midpiece and tail regions (Fig. 2A) all bounded。

spermatozoon [sper″mah-to-zo´on] (pl. spermatozo´a) (Gr.) a mature male germ cell, the specific output of the testes, which fertilizes the mature ovum (secondary oocyte) in sexual。

The term spermatozoa (singular: spermatozoon), also known as sperm, refers to the male sex cells or gametes. They are formed through the process of spermatogenesis, which begins at puberty with the proliferation。

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