Lunate bone

The lunate bone is a wrist bone so named because it is shaped like a crescent moon with the concavity facing downwards. It is a bone, paired, short, spongy, compact, cuboid in shape, semilunar, which looks like a moon, with six faces, four of which are articular.

Veneers

The four articular facets are:

1. Top, radio convex.
2. Lower, concave for the head of the big bone and the upper extremity of the hook
3. External car, flat and very small for scaphoids
4. Internal position, flat also but much larger for pyramidal

Non-articular veneers

Of the two non-articular facets of the lunate, the anterior is convex and the posterior is flat. Both are rough but no muscle is attached to them.

Connections

It is the second bone of the first row of the carpus; articulates with the radius, scaphoid, triquetrum, hamate, and large.