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of the acrosome. The head of a human sperm is disc shaped, and approximately 5.1 by 3.1 pitch.
* Tail: also called the flagellum, is the longest part, at approximately 50 pitch. It is capable of wave-like motion that propels sperm for swimming and aids in the penetration of the egg. The flagellum propels the sperm cell at about 1 to 3 mm/min. The tail was formerly thought to move symmetrically in a helical shape.
* Neck: also called connecting piece contains one typical

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