Assertion: shoulder's mobility | /r/HasProperty | owed
Facets:
value: partly
type: DEGREE
Source sentences:
text: remarkable mobility is partly owed to the fact that the shoulders are actually two joints: the glenohumeral joint, where the arm bone fits into the socket of the shoulder blade creating a very shallow ball-and-socket joint, and the AC (acromioclavicular) joint where the shoulder blade attaches to the collarbone creating a gliding joint.