Where is coronoid process located

The first is found on the jawbone, also referred to as the mandible. The other coronoid process is located on the ulna , a long bone found in the forearm. In each location, this process has a bit of a triangular appearance, although the exact shape and size varies. The coronoid process of the mandible has a top border which is convex in shape. This means that it curves in an outward direction.

This top border lies next to the top portion of the ramus, which is the horseshoe-shaped part of the lower jaw. The lower border of the coronoid process is concave in nature, meaning that it curves in an inward direction. This portion lies near the structure known as the mandibular arch. The lateral portion of the coronoid process has a smooth surface and is inserted into the masseter and temporalis. These are muscles that aid in the process of chewing and swallowing.

The medial, or middle, part of the coronoid process also attaches to the temporalis muscle and ends just beside the last molar. The coronoid process of the ulna projects from the front part of the ulna, one of the major bones in the arm. The sharp, curved apex, or highest point of the structure, attaches to the coronoid fossa of the humerus. This attachment occurs when the forearm is in a flexed position.

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Sign in with Apple. Description The coronoid process is a triangular eminence projecting forward from the upper and front part of the ulna.

This definition incorporates text from a public domain edition of Gray's Anatomy 20th U. Subscribe now Discover our subscription plans Subscribe. Manage cookies Accept. Cookie settings. Essential technical cookies Description.

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