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184520 - Video 13
184520 - Video 13
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Video Transcription
So, in summary, short kind of things you want to get across in your teaching functional anatomy of the first rib, the cervical-thoracic junction, this thoracic inlet, is ensure there's multiple structures that go between that are impacted by the cervical-thoracic area themselves. We also want to acknowledge this, that because this transition area is important itself, that also key diaphragms associated with here. The key one here is only Simpson's fascia. So working with the other diaphragms, the thoraco-abdominal, and your general pelvic diaphragm, this itself, by this attachment, functionally, when it goes more superiorly, creates a negative interthoracic pressure. Another thing we know is there's key muscle groups. We talked about the trabezius. It's extensive through the area themselves, from all the way from the occiput all the way down to T12, and at both upper extremity, anterior to the clavicle, and posterior with the spine to the scapula. The levator scapula itself, that's attaching to the scapula all the way up to the cervical spine, and anteriorly, the scalene muscles. So those are key anatomical things to think about when you look at this first rib, cervical-thoracic area involving the thoracic inlet.
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
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