tight junction

tight junction definition - medical

tight junction (tīt)

noun
An intercellular junction between epithelial cells in which the outer layers of the cell membranes fuse, reducing the ability of larger molecules and water to pass between the cells.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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