Sperm cell

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Sperm is the male reproductive cell. The word sperm comes form the greek word for seed, 'sperma'. Sperm contains 23 [[chromosomes|chromosomes]] and is a [[haploid cell|haploid cell]], since it contains half of its parents' chromosomes. The Sprem cell size consists of a head which is 5µm long and 3µm wide and a tail that is 50 µm long &nbsp;<ref>Author unknown, (date unkown) What is Sperm? http://www.news-medical.net/health/What-is-Sperm.aspx</ref>.
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The Sperm cell is known as the male [[Sexual reproduction|reproductive cell]]. The word sperm comes form the Greek word for seed, 'sperma'. Sperm cells contain 23 [[Chromosomes|chromosomes]] and are known as&nbsp;[[Haploid cell|haploid cells]], since they contain half of its parents' [[Chromosomes|chromosomes]]. The spermatozoa of animals are produced in the gonads via meiotic division during spermatogenesis. The Sperm cell consists of two structures: the head which is 5 µm long and 3 µm wide and a [[Flagellum|flagellum]] that is 50 µm long. The structure was first observed in 1677 under a [[Microscope|microscope]].  
  
=== References ===
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It can be either motile or non-motile. It is considered motile (or "spermatozoon") when the sperm has the single flagellum, which moves in a whip-like manner and it goes to the [[Egg cell|egg]]. While the non motile sperm do not have the flagellum and it is called "spermatium"<ref>News Medical Life Sciences. Sperm - Male Reproductive Cells. Dr Ananya Mandal. September 2014. Available from: http://www.news-medical.net/health/What-is-Sperm.aspx</ref>.<br>
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=== References ===
  
 
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Latest revision as of 16:07, 20 October 2018

The Sperm cell is known as the male reproductive cell. The word sperm comes form the Greek word for seed, 'sperma'. Sperm cells contain 23 chromosomes and are known as haploid cells, since they contain half of its parents' chromosomes. The spermatozoa of animals are produced in the gonads via meiotic division during spermatogenesis. The Sperm cell consists of two structures: the head which is 5 µm long and 3 µm wide and a flagellum that is 50 µm long. The structure was first observed in 1677 under a microscope.

It can be either motile or non-motile. It is considered motile (or "spermatozoon") when the sperm has the single flagellum, which moves in a whip-like manner and it goes to the egg. While the non motile sperm do not have the flagellum and it is called "spermatium"[1].

References

  1. News Medical Life Sciences. Sperm - Male Reproductive Cells. Dr Ananya Mandal. September 2014. Available from: http://www.news-medical.net/health/What-is-Sperm.aspx
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