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| Q. |
In the deepest intercostal muscle layer: |
| A. | the subcostals line the rib cage at the side |
| B. | fibres of the innermost intercostal group only span one intercostal space |
| C. | fibres of the subcostals group only span one intercostal space |
| D. | transversus thoracis fibres only arise from 2nd to 6th costal cartilages |
| E. | the border of the subcostal muscle group meets the innermost intercostal groups, overlapping slightly so the intercostal artery can slip between them to join the intercostal nerve |
| Answer» D. transversus thoracis fibres only arise from 2nd to 6th costal cartilages | |
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