Impingement syndromes of the shoulder are associated with both intrinsic and extrinsic factors affecting the structures in the suprahumeral space and resulting in shoulder pain.Of the following contributing factors,which is classified as an intrinsic factor?

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Intrinsic factors are those that originate within the shoulder joint, such as changes in the tendons or ligaments. Vascular changes in the rotator cuff tendons would be an example of an intrinsic factor. Choices B and C are extrinsic factors, as they involve changes outside of the joint, such as the acromion or the AC joint. Choice D is a bit vague, but it could potentially be an extrinsic factor related to posture or muscle imbalances.

Impingement Syndromes of the Shoulder Are Associated with Both Intrinsic