##  [Mucus Gel Layer](/index.php/mucus-gel-layer) 

  ##  [Mucus Gel Layer](https://health.quantumdictionary.io/mucus-gel-layer-0) 

  

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**Health & Life Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A secreted, viscoelastic extracellular matrix dominated by high‑molecular‑weight mucin glycoproteins, together with salts, lipids and other macromolecules; it overlies the epithelium, provides lubrication, creates a diffusion barrier that limits particulate and microbial access to the epithelial surface, and forms a habitat and nutrient matrix for the resident microbiota.