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Video Summary

The functional anatomy of the first rib and cervical-thoracic junction is crucial due to its impact on multiple structures in the area. This transition is significant for its key diaphragms, especially Simpson's fascia, which, along with the thoraco-abdominal and pelvic diaphragms, helps create negative interthoracic pressure. Important muscle groups include the trapezius, extending from the occiput to T12, affecting both upper extremities; the levator scapula, connecting the scapula to the cervical spine; and the scalene muscles. These anatomical aspects are essential when considering the first rib and thoracic inlet.

Keywords

first rib

cervical-thoracic junction

Simpson's fascia

negative interthoracic pressure

scalene muscles