関節

左肩の関節が痛みます。

The joint of my left shoulder aches.

どこの関節がはずれたの？

Which joint did you dislocate?

気温が下がると関節が痛むんだ。

My joints ache when it gets cold.

右腕の関節が脱臼したようです。

I'm afraid I dislocated my right arm.

肩関節は、単独で動くほか、腕(うで)の動きにも連動して動きます。

The shoulder joints, as well as moving on their own, also move in conjunction with arm movements.