Spermatozoon

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Spermatozoon

A spermatozoon (plural spermatozoa), or sperm cell, is the male reproductive cell that is involved in the sexual reproduction of most animals, including humans. The term is derived from the Greek words "sperma" (meaning "seed") and "zoion" (meaning "animal").

Structure

A spermatozoon is a specialized cell that is typically composed of a head, a midpiece, and a tail. The head contains the nucleus, which carries the genetic material (in the form of DNA). The midpiece contains the mitochondria, which provide the energy for the sperm cell. The tail, or flagellum, enables the sperm cell to move.

Function

The primary function of a spermatozoon is to fertilize the female ovum (or egg cell) to produce a new individual. This process is known as fertilization. During fertilization, the sperm cell's nucleus merges with the nucleus of the ovum, combining their genetic material to form a zygote.

Production

Spermatozoa are produced in the male reproductive organs, specifically the testes. The process of sperm production is known as spermatogenesis. During spermatogenesis, precursor cells called spermatogonia undergo a series of divisions and transformations to become mature spermatozoa.

See also

References


External links

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Spermatozoon

  • Sperm-egg

  • Complete diagram of a human spermatozoa

  • Human sperm under microscope

  • Spermatozoa human 3140x

  • Sperms (urine) - Spermler (idrar)

  • Sperm Head Dimensions

  • Plant sperm

  • Acrosome reaction diagram

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Contributors: Prab R. Tumpati, MD