Which anatomical structures contribute to the stability of the elbow joint?
Understand the Problem
The question is asking about the different anatomical structures that play a role in maintaining the stability of the elbow joint, including options that indicate structural components and supporting tissues.
Answer
The elbow joint's stability comes from static stabilizers like ligaments and bones, and dynamic stabilizers such as muscles.
The elbow joint's stability is provided by both static and dynamic stabilizers. The primary static stabilizers include the ulnohumeral articulation, the anterior (AMCL) and lateral collateral ligament (LCL) complex. Secondary static constraints are the radiocapitellar articulation, common flexor and extensor tendons, and the joint capsule. Dynamic stability is mainly provided by the muscles crossing the elbow joint.
Answer for screen readers
The elbow joint's stability is provided by both static and dynamic stabilizers. The primary static stabilizers include the ulnohumeral articulation, the anterior (AMCL) and lateral collateral ligament (LCL) complex. Secondary static constraints are the radiocapitellar articulation, common flexor and extensor tendons, and the joint capsule. Dynamic stability is mainly provided by the muscles crossing the elbow joint.
More Information
The elbow joint is highly stable due to its combination of static structures like ligaments and bones, and dynamic ones like the muscles which contribute to its comprehensive stability.
Tips
A common mistake is overlooking the role of dynamic stabilizers (muscles) which are crucial for joint stability during movement.
Sources
- Stability of the Elbow Joint: Relevant Anatomy and Clinical ... - pmc.ncbi.nlm.nih.gov
- The Anatomy and Biomechanics of the Elbow - openorthopaedicsjournal.com
- Stabilizers of the elbow - ScienceDirect - sciencedirect.com
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