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Definitions for
"Fenestrae"
Keywords:
pore
,
noradrenaline
,
epithelial
,
stimuli
,
singular
Pore or small opening
histology-world.com
Fenestrae (singular: fenestra) 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.
en.wikipedia.org