In its proximal end, the volar plate becomes membranous and blends with the volar capsule which is attached to the head of the metacarpal bone.
Humans did not evolve from knuckle-walking apes, and chimpanzees and gorillas independently acquired elongated metacarpals as part of their adaptation to their modes of locomotion.
X-rays revealed a non-displaced fracture of the fifth metacarpal.
The arrangement of the forefoot bone ("metacarpal") columns in eusauropods was semi-circular, so sauropod forefoot prints are horseshoe-shaped.
The second metacarpal bone is connected to the trapezium, trapezoid, and capitate.
It connects the dorsal sides of the trapezium and the first metacarpal.
Together with the fourteen phalanx bones of the fingers these metacarpal bones form five rays or poly-articulated chains.
This claimed to have shown that women in the highest quartile of bone density at the distal radius or metacarpal had a two- to three-fold increased risk of breast cancer.