A dorsal ridge seres as the attachment point for the dorsal joint capsule, and perforating branches from the radial artery supply approximately 75% of the intraosseous blood.

• 舟骨背侧的背脊是背侧关节囊的附着点，其内有来自桡动脉的穿支，为舟骨提供约75%25的血供。