Assertion: ampulla | /r/MadeOf | jelly-filled canal opening
Facets:
value: to the surface
type: LOCATION
value: in the skin
type: LOCATION
value: by a pore
type: OTHER
Source sentences:
text: Each ampulla consists of a jelly-filled canal opening to the surface by a pore in the skin and ending blindly in a cluster of small pockets full of special jelly like substance.