Fenestra

From Wikipedia, the free encyclopedia
  (Redirected from Fenestra (anatomy))
Jump to navigation Jump to search

A fenestra (fenestration; plural fenestrae or fenestrations) is any small opening or pore, commonly used as a term in the biological sciences.[1] It is Latin for the word "window", and is used in various fields to describe a pore in an anatomical structure.

In morphology, fenestrae are found in cancellous bones, particularly in the skull. In anatomy, the round window and oval window are also known as the fenestra rotunda and the fenestra ovalis. In microanatomy, fenestrae are found in endothelium of fenestrated capillaries, enabling the rapid exchange of molecules between the blood and surrounding tissue. The elastic layer of the tunica intima is a fenestrated membrane. In surgery, a fenestration is a new opening made in a part of the body to enable drainage or access.

In plant biology, the perforations in a perforate leaf are also described as fenestrae, and the leaf is called a fenestrate leaf. The leaf window is also known as a fenestra, and is a translucent structure that transmits light, as in Fenestraria.

In zoology, the trilobite Fenestraspis possessed extensive fenestrae in the posterior part of the body. In the paleognathae, there is an ilio–ischiatic fenestra.

See also

References

  1. ^ "Fenestra - definition of fenestra in English | Oxford Dictionaries". Oxford Dictionaries | English.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Fenestra&oldid=850297453"
This content was retrieved from Wikipedia : http://en.wikipedia.org/wiki/Fenestra_(anatomy)
This page is based on the copyrighted Wikipedia article "Fenestra"; it is used under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC-BY-SA). You may redistribute it, verbatim or modified, providing that you comply with the terms of the CC-BY-SA