Assertion: patella | /r/CapableOf | straighten the knee
Facets:
Source sentences:
text: The patella is attached to the tendon of the quadriceps femoris muscle, which contracts to extend/straighten the knee.
text: The patella provides additional leverage to the quadriceps muscle allowing it to produce more power as it straightens the knee.
text: The patella is attached to the tendon of the quadriceps femoris muscle, which contracts to extend/straighten the knee.
text: The patella is attached to the tendon of the quadriceps femoris muscle, which contracts to extend/straighten the knee.