Coronoid process of the ulna
You don't need to be Editor-In-Chief to add or edit content to WikiDoc. You can begin to add to or edit text on this WikiDoc page by clicking on the edit button at the top of this page. Next enter or edit the information that you would like to appear here. Once you are done editing, scroll down and click the Save page button at the bottom of the page.
| Bone: Coronoid process of the ulna | |
|---|---|
 | |
| Upper extremity of left ulna. Lateral aspect. | |
| Latin | processus coronoideus ulnae |
| Dorlands / Elsevier | p_34/12667410 |
The coronoid process is a triangular eminence projecting forward from the upper and front part of the ulna.
Its base is continuous with the body of the bone, and of considerable strength.
Its apex is pointed, slightly curved upward, and in flexion of the forearm is received into the coronoid fossa of the humerus.
Its upper surface is smooth, concave, and forms the lower part of the semilunar notch.
Its antero-inferior surface is concave, and marked by a rough impression for the insertion of the Brachialis muscle. At the junction of this surface with the front of the body is a rough eminence, the tuberosity of the ulna, which gives insertion to a part of the Brachialis; to the lateral border of this tuberosity the oblique cord is attached.
Its lateral surface presents a narrow, oblong, articular depression, the radial notch.
Its medial surface, by its prominent, free margin, serves for the attachment of part of the ulnar collateral ligament. At the front part of this surface is a small rounded eminence for the origin of one head of the Flexor digitorum superficialis muscle; behind the eminence is a depression for part of the origin of the Flexor digitorum profundus muscle; descending from the eminence is a ridge which gives origin to one head of the Pronator teres muscle.
Frequently, the Flexor pollicis longus muscle arises from the lower part of the coronoid process by a rounded bundle of muscular fibers.
Additional images
 Bones of left forearm. Anterior aspect. |
External links
- Coronoid+process at eMedicine Dictionary
- Norman/Georgetown lesson4bonesofantforearm, Norman/Georgetown radiographsul
- Bioweb at UWLAX Right ulna (anterior - proximal end)
- X-ray at uams.edu
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
 | This musculoskeletal system article is a stub. You can help WikiDoc by expanding it. |
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
