Fenestra (histology)
For other uses, see Fenestra (disambiguation).
In histology, fenestræ are small pores in endothelial cells that allow for rapid exchange of molecules between fenestrated blood vessels, sinusoid blood vessels and surrounding tissue. These pores may enlarge and contract at the action of various stimuli such as the hormone noradrenaline. Fenestræ (singular: fenestra) is a Latin word that means "windows".
See also
This article is issued from Wikipedia - version of the 10/27/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.