Costal Cartilages
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| Role of Costal Cartilages | Prolong ribs anteriorly & contribute to elasticity of thoracic wall. Prevent blows from fracturing sternum/ribs. Elderly undergo calcification
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| Rib Excision | Incision through periosteum at rib curve. Piece of rib removed, will regenerated
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| Rib Fractures | Weakest part - anterior to angle. Middle ribs most fractured. Can puncture lung/spleen
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| Flail Crest | When sizeable segment of anterior/lateral thoracic wall moves freely b/c multiple fractures
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| Supernumerary Ribs | Normally 12 ribs/side. Number increased by presence of cervical and/or lumbar ribs, or decreased by failure of 12th rib to form.
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| sternal fractures | Occur during traumatic compression of thoracic wall. Common fracture at body of sterum angle, results in dislocation of manubiosternal joint
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| median sternotomy | sternum split in median plane, retracted and reunited w/ wire sutures
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| sternal biopsies | sternal body used for bone marrow needle biopsy
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| thoracic outlet syndrome | superior thoracic aperture emphasizing important nn. & aa. thru aperture into lower neck & upper limb, ex. costoclavicular syndrome
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| rib dislocation | slipping rib syndrome, displacement of costal cartilage from sternum; pain w/deep respiratory movements. Common in contact sports, cause pressure/damage to nn. vessels, mm.
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| rib separation | dislocation of costochondral junction btwn rib & costal cartilage. Separations of 3-10th ribs, tearing perichondrium & periosteum, thus rib moves superiorly, overriding rib above
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| diaphram paralysis | detection by paradoxical movement. To 1/2 of diaphragm b/c injury to motor supply from phrenic n. only affects 1 dome. Paralyzed dome pushes superiorly by abdominal viscera that are compressed by active side, instead of descending during inspiration
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| pulmonary collapse | If sufficient amount of air enters air pleural cavity, surface tension adhering visceral to parietal pleura (lung to thoracic wall) broken, lung collapses b/c elastic recoil. At collapse, pleural cavity becomes real space
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| pleuritis | inflammation of pleurae makes lung surfaces rough, friction heard w/stethoscope. Acute is sharp, stabbing pain w/exertion
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Created by:
JYarger
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