Musculus Anconeus (Noun)
Meaning
The muscle that extends the forearm and abducts the ulna in pronation of the wrist.
Classification
Nouns denoting body parts.
Examples
- The musculus anconeus is a small muscle located at the posterior aspect of the elbow joint, where it originates from the posterior surface of the lateral epicondyle of the humerus.
- In order to facilitate pronation, the musculus anconeus contracts to abduct the ulna and thereby allow the forearm to rotate.
- During extension of the forearm, the musculus anconeus assists the triceps brachii in straightening the elbow joint.
- Lesions to the musculus anconeus can result in weakness of forearm extension and impaired pronation due to the disruption of forearm stabilizers.
- Anatomical studies have elucidated the precise origin, insertion, and innervation of the musculus anconeus, enabling surgeons to perform precise repairs during reconstructive surgery.