挫く[kujiku] to sprain
挫ける[kujikeru] to be crushed
挫傷[zashou] bruise (internal)
挫折[zasetsu] setback
捻挫[nenza] sprain

頓挫[tonza] setback
脳挫傷[nouzashou] cerebral contusion
鋭を挫く[eiwokujiku] to break the brunt
挫折感[zasetsukan] feeling of frustration
挫き[kujiki] sprain

せん状骨[senjoukotsu] scaphoid bone (in wrist near thumb)
遺骨[ikotsu] remains
化骨[kakotsu] ossification
会厭軟骨[eennankotsu] epiglottis
がい骨[gaikotsu] skeleton

雁骨[kariganebone] scapula
気骨[kikotsu] (moral) backbone
侠骨[kyoukotsu] chivalrous spirit
胸骨[kyoukotsu] breastbone
筋骨[kinkotsu] muscles (sinews) and bones