What artery is involved here?
A muscular patient who regularly lifts weights presents with pain and weakness in his right upper limb that has been slowly developing over time. His limb is cool and there is an obvious vascular insufficiency in his upper extremity. Subsequent tests show that a large vessel passing between the anterior and middle scalene muscles is being occluded by hypertrophy (enlargement) of the muscles due to the exercise.
A. Axillary B. Brachial C. Brachiocephalic D. Subclavian E. Suprascapular
The body is supplied by various arteries that carry blood from the heart to the tissues. These arteries have to loop around anatomical structures like bones, muscles and ligaments to reach their destination. This is why they are likely to be occluded or compromised which leads to compromise of the blood flow to the extremity.
In certain situations such as the fracture of a bone or the hypertrophy of a muscle, these arteries can get occluded. In the case of hypertrophy of the upper arm, the artery responsible is most likely to be the subclavian artery. This is the name of the artery that takes blood to the arms from the heart.