metacarpale

The Fourth Metacarpal Bone (os metacarpale IV; metacarpal bone of the ring finger) (Fig. 232) is shorter and smaller than the third.

II. Osteology. 6b. 2. The Metacarpus 1918

The Fifth Metacarpal Bone (os metacarpale V; metacarpal bone of the little finger) (Fig. 233) presents on its base one facet on its superior surface, which is concavo-convex and articulates with the hamate, and one on its radial side, which articulates with the fourth metacarpal.

II. Osteology. 6b. 2. The Metacarpus 1918

The Third Metacarpal Bone (os metacarpale III; metacarpal bone of the middle finger) (Fig. 231) is a little smaller than the second.

II. Osteology. 6b. 2. The Metacarpus 1918

The Second Metacarpal Bone (os metacarpale II; metacarpal bone of the index finger) (Fig. 230) is the longest, and its base the largest, of the four remaining bones.

II. Osteology. 6b. 2. The Metacarpus 1918

—The First Metacarpal Bone (os metacarpale I; metacarpal bone of the thumb) (Fig. 229) is shorter and stouter than the others, diverges to a greater degree from the carpus, and its volar surface is directed toward the palm.

II. Osteology. 6b. 2. The Metacarpus 1918