Assertion: deltoid | /r/HasProperty | prime mover of arm abduction
Facets:
value: along the frontal plane
type: LOCATION
Source sentences:
text: When all its fibers contract simultaneously, the deltoid is the prime mover of arm abduction along the frontal plane.
text: The deltoids are fleshy, triangle-shaped muscles that form the rounded shape of the shoulders; the deltoids are the prime movers of arm abduction.