coronoid process

(anatomy) A thin, flattened process projecting from the anterior portion of the upper border of the ramus of the mandible, and serving for the insertion of the temporal muscle. A triangular projection from the upper end of the ulna, forming the lower part of the radial notch.

The thin, triangular, rounded eminence originating from the anterosuperior surface of the ramus of the mandible. Provides insertion for the various fiber bundles of the temporal muscle.

A bony process on the ulna that, with the olecranon process, forms a stable hinge-joint with the humerus.

1. a part of the mandible that projects into the temporal fossa and provides attachment for the temporal muscle.
2. the medial and lateral prominences located on either side of the trochlear notch of the ulna, forming part of the articular surface with the radius and humerus.

• fragmented c. p. — a developmental lesion of young, large breed dogs. Causes a weight-bearing lameness. May occur in association with osteochondritis dissecans of the medial humeral condyle. Called also ununited coronoid process, elbow dysplasia.
• ununited c. p. — see fragmented coronoid process (above).