Assertion: finger's joint | /r/HasProperty | knuckle
Facets:
value: at the base of the fingers
type: LOCATION
Source sentences:
text: The most commonly affected joints in the hand are the knuckles at the base of the fingers (the MCP joints).
text: The radial nerve supplies the finger extensors and the thumb abductor, thus the muscles that extends at the wrist and metacarpophalangeal joints (knuckles); and that abducts and extends the thumb.
text: The most commonly affected joints in the hand are the knuckles at the base of the fingers (the MCP joints).