Clinical Points Block 3 - 1 What problems might a cervical...

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1. What problems might a cervical rib cause? a. A cervical rib is one of the causes of the thoracic outlet syndrome. It is due to a remnant or development of a costal process on the C7 vertebra, which may lead to i. Compression of the subclavian artery leading to ischemic pain ii. Thoracic outlet syndrome may also lead to lower brachial plexus compression, which can cause muscle weakness and pain in the upper limb. iii. A mass may also be palpable in the lower neck. 2. How does the thoracic cage move during respiration? a. The thoracic cage moves with respiration by widening the thorax during inspiration, then returning to normal size during expiration These movements are facilitated by several factors, including the mobility in the costovertebral joints, movement at the manubriosternal joint, elevation of the sternum by sternocleidomastoid and scalene muscles, elasticity of the
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  • Fall '14
  • Dr.MohtashemSamsam
  • Sternum, thoracic outlet syndrome

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