Assertion: tonsil's cell | /r/CapableOf | form their walls
Facets:
Source sentences:
text: The edges of the endothelial cells forming their walls loosely overlap one another, forming flaplike mini-valves that act as one-way swinging doors; the flaps, anchored by fine collagen fibers to surrounding structures, gape open when the fluid pressure is higher in the interstitial space, allowing fluid to enter the lymphatic capillary.
text: The edges of the endothelial cells forming their walls loosely overlap one another, forming flaplike mini-valves that act as one-way swinging doors; the flaps, anchored by fine collagen fibers to surrounding structures, gape open when the fluid pressure is higher in the interstitial space, allowing fluid to enter the lymphatic capillary.