[3] The palmar surface of the scaphoid is concave, and forming a distal tubercle, giving attachment to the transverse carpal ligament.

[4] The dorsal surface of the bone is narrow, with a groove running the length of the bone and allowing ligaments to attach, and the surface facing the fingers (anatomically inferior) is smooth and convex, also triangular, and divided into two parts by a slight ridge.

[4] In reptiles, birds, and amphibians, the scaphoid is instead commonly referred to as the radiale because of its articulation with the radius.

The carpal bones function as a unit to provide a bony superstructure for the hand.

Fractures of the scaphoid must be recognized and treated quickly, as prompt treatment by immobilization or surgical fixation increases the likelihood of the bone healing in anatomic alignment, thus avoiding mal-union or non-union.

Healing of the fracture with a non-anatomic deformity (frequently, a volar flexed "humpback") can also lead to post-traumatic arthritis.

A repeat x-ray may be required at a later date, as might cross-sectional imaging via MRI or CT scan.

Its position is the intersections of the long axes of the four fingers while in a fist, or the base of the thenar eminence.

When palpated in this position, the bone will be felt to slide forward during radial deviation (wrist abduction) and flexion.