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Spermatozoan

Definition

noun

A mature male gamete or reproductive cell; sperm cell.


Supplement

A spermatozoan or spermatozoon consists of a round or cylindrical nucleated cell, a short neck, and a thin motile tail. Its structure is vital to its mobility and function (i.e. sexual reproduction). The compacted nucleus contains half of the genetic information. It fuses with an ovum (the female gamete) to form a zygote. In mammals, the sex is determined by the spermatozoon. If it bears Y chromosome, the resulting offspring is a male. If X chromosome, the offspring is a female.


Word origin: Greek, from sperma, spermat-, seed + New Latin -zōon, from Greek zōion, zōon, living being.
Related forms: spermatozoal, spermatozoic (adjective).

Variant: spermatozoon.
Also called: sperm cell, zoosperm.


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The Fiber Disease

... degrees of infertility. There is also evidence that altered levels of protamines may result in an increased susceptibility to injury in the spermatozoan DNA causing infertility or poor outcomes in assisted reproduction. The present work reviews the articles published to date on the relationship ...

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by Nadas Moksha
Wed Oct 04, 2006 6:28 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5412454


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