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Sep 25, · Sperm, male reproductive cell, produced by most animals. In higher vertebrates, especially mammals, sperm are produced in the testes. The sperm unites with (fertilizes) the ovum (egg) of a female to produce a new offspring. Mature sperm have two distinguishable parts, a head and a tail.
Sperm cells are gametes (sex cells) that are produced in the testicular organ (gonad) of male human beings and animals. Like the female gamete (Oocyte), sperm cells carry a total of 23 chromosomes that are a result of a process known as meiosis.
Human sperm cells are always haploid, that is, they contain 23 chromosomes. When a spermatozoon reaches and joins an oocyte, which also contains 23 chromosomes, they form a diploid cell of 46 cells. Sperm cell adaptations. Spermatozoa are structurally specialized to its function through the following anatomical changes.