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basement membrane

American  

noun

Cell Biology.
  1. a thin, extracellular membrane underlying epithelial tissue.


Etymology

Origin of basement membrane

First recorded in 1840–50

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

It’s the type IV collagen in the basement membrane of my cochlea, or inner ear, that is abnormal and contributes to sensorineural hearing loss.

From Salon Sep. 30, 2024

Isolectin B4 binds to α-d-galactose residues in the basement membrane secreted by endothelial cells, which surrounds pericytes.

From Nature Apr. 4, 2014

Here, there are tight junctions and no intercellular clefts, plus a thick basement membrane and astrocyte extensions called end feet; these structures combine to prevent the movement of nearly all substances.

From Textbooks Jun. 19, 2013

The basement membrane provides strength while maintaining flexibility, and it is permeable, allowing materials to pass through it.

From Textbooks Jun. 19, 2013

In the larger ducts there are two layers of cells, but even here the surface cell usually extends by a thinned-out stalk down to the basement membrane.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6 "English Language" to "Epsom Salts" by Various

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