During subacromial decompression surgery for impingement syndrome, the surgeon identifies the coracoacromial arch. Which of the following structures does NOT form part of the coracoacromial arch?
- A Coracoacromial ligament
- B Coracoid process
- C Coracohumeral ligament ✓
- D Acromion
Correct answer: C. Coracohumeral ligament
Explanation
The coracoacromial arch is formed by the acromion, the coracoacromial ligament, and the coracoid process. This fibro-osseous arch forms a protective roof over the supraspinatus tendon and subacromial bursa. The coracohumeral ligament runs from the coracoid process to the greater and lesser tuberosities of the humerus; it stabilizes the shoulder joint but does not form part of the coracoacromial arch.
Reference: Rockwood and Green's Fractures in Adults, 9th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.