中ちゅう手しゅ骨こつ

noun

metacarpal bone; metacarpus

Anatomical term for the bones of the palm, between the wrist and fingers.

• 中ちゅう手しゅ骨こつは手てのひらにある5本ほんの細ほそ長ながい骨ほねです。

  The metacarpal bones are the five long bones in the palm of the hand.