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Human sperm cell

Sperm are the male reproductive cells. In all cases, the sperm meets with the egg of the female and grows into a new organism. The name sperm is taken from the Greek word Sperma meaning seed. An animal sperm cell is capable of movement, as it has to get to the uterus to meet with the ovum. Sperm usually consist of two morphologically and functionally distinct regions enclosed by a single plasma membrane: the tail, which propels the sperm to the egg and helps it to burrow through the egg coat, and the head, which contains a condensed haploid nucleus.