College of Massage Therapists of British Columbia (CMTBC) Practice Exam

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Which muscle attaches to the infraglenoid tubercle?

  1. pectoralis minor

  2. pectoralis major

  3. biceps brachii

  4. triceps brachii

The correct answer is: triceps brachii

The correct answer is the triceps brachii, which attaches to the infraglenoid tubercle. This tubercle is located on the scapula, specifically at the inferior aspect of the glenoid cavity. The long head of the triceps brachii originates from this site, playing a vital role in extending the elbow and contributing to shoulder joint stabilization. Understanding this attachment is crucial for recognizing the functional anatomy of the shoulder region, as the triceps brachii's role extends beyond elbow extension to include its influence on shoulder movements. The other muscles listed do not originate from the infraglenoid tubercle, thereby differentiating them from the triceps brachii.