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Intercostal Muscles Extend Ribs Innervated Spinal Nerves Originating

Front What are the intercostal muscles?
Back These muscles extend between the ribs, and are innervated from the spinal nerves originating in the cervical region C6 and C7, and allow the chest to expand on contraction and allow for the active portion of ventilation to occur.

Tags: 27, chest, injuries

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