Institutional subscriptions support Language. Keep me signed in. Forgot your password? Sign in with Facebook. Sign in with Apple. Description Above the front part of the trochlea is a small depression, the coronoid fossa, which receives the coronoid process of the ulna during flexion of the forearm. 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. The coronoid fossa is a depressed surface found on the lower front portion of the humerus , the long bone of the upper arm. It is situated on the front of the bone where the ulna and radius bones of the forearm meet the humerus at the elbow joint.
This depression is where the coronoid process of the ulna curves into the humerus upon bending the arm at the elbow. While no muscles attach to the coronoid fossa, the brachialis muscle of the upper arm inserts at the coronoid process just beyond the fossa and makes arm flexion possible by pulling the process into the receiving fossa as it contracts. Extending from the shoulder to the elbow, the humerus features several irregularly shaped eminences and depressions at its base.
Some serve as sites of attachment for muscles. The medial and lateral epicondyles, for instance, are rounded protrusions on either side of the base of the bone that are origin points for multiple muscles of the forearm. You could not be signed in, please check and try again. Sign in with your library card Please enter your library card number.
Related Content Related Overviews trochlea. Show Summary Details Overview coronoid fossa. All rights reserved. Sign in to annotate. Delete Cancel Save. Cancel Save.
0コメント