Lab 3 - Image 6

Dorsal lateral view of a third phalanx with extensive ossification of the collateral cartilages (1) a.k.a. sidebone. 2, crena (marginal indentation of the toe region of P3); 3, parietal surface of P3; 4, articular surface; 5, extensor process; 6, space for attachment of the collateral ligament of the distal interphalangeal (dip) joint.