Assertion: endocardium's layer | /r/CapableOf | produce lubricating serous fluid
Facets:
Source sentences:
text: The epithelial layer , known as mesothelium, consists of a single layer of avascular flat nucleated cells (simple squamous epithelium) which produce the lubricating serous fluid.
text: , known as mesothelium, consists of a single layer of avascular flat nucleated cells (simple squamous epithelium) which produce the lubricating serous fluid.