FACTOID # 15: A mere 0.8% of West Virginians were born in a foreign country.
 
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Encyclopedia > Fenestrae

Are small pores in epithelial cells to allow for rapid exchange of molecules between blood vessels and surrounding tissue. These pores can enlarge and contract at the action of various stimuli such as noradrenaline.


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Fenestrae - Wikipedia, the free encyclopedia (112 words)
Scanning electron mocrograph of a liver sinusoid with fenestrated endothelial cells.
Fenestrae are approx 100 nm diameter, and sinusoidal width 5 micrometres.
Fenestrae (singular: fenestra) are small pores in epithelial cells to allow for rapid exchange of molecules between blood vessels and surrounding tissue.
Temporal fenestra - Wikipedia, the free encyclopedia (294 words)
Dinosaurs, which are sauropsids, have large advanced openings and their descendants, the birds, have temporal fenestrae which have been modified.
It is a hole in the head and is situated to the rear of the orbit behind the eye.
The presence and morphology of the temporal fenestra is critical for taxonomic classification of the synapsids, of which mammals are part.
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