_____ lubricates, moistens, and protects the cells within the mucosa.

Entire Course Link

https://plus.google.com/u/0/108200033792883877670/posts/dWT4sDYbQKM

 

 _____ lubricates, moistens, and protects the cells within the mucosa.






Bile


 


Enzymes


 


Lumen


 


Mucus

 
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