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7 Cards in this Set
- Front
- Back
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DIAPHRAGM O- Xiphoid process, lower 6 costal cartilages, first 3 lumbar cartilages I- Central tendon N- Phrenic nerve A- Very important muscle for inspiration; increase vertical diameter of by pulling central tendon downward; assist in raisinh lower ribs. Also used in abdominal straining and weight lifting |
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LEVATORES COSTATORUM O- Tip of transverse process of C7 and T1-11 vertebrae I- Rib below N- Posterior rami of thoracic spinal nerves A- Raises ribs and therefore inspiratory muscles |
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SERRATUS POSTERIOR SUPERIOR O- Lower cervical and upper thoracic spines I- Upper ribs N- Intercostal nerves A- Raises ribs and therefore inspiratory muscles |
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SERRATUS POSTERIOR INFERIOR O- Upper lumbar and lower thoracic vertebrae I- Lower rins N- Intercostal nerve A- Depresses ribs and therefore expiratory muscles |
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EXTERNAL INTERCOSTAL O- Inferior border of rib I- Superior border of rib below N- Intercostal nerve A- With 1st rib fixed, they raise rib during inspiration and thus increases anteroposterior and transverse diameters of thorax |
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INTERNAL INTERCOSTAL O- Inferior border of rib I- Superior border of rib below N- Intercostal nerve A- With last rib fixed by abdominal muscles, they lower ribs during expiration |
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INNERMOST INTERCOSTAL O- Adjacent ribs I- Adjacent ribs N- Intercostal nerves A- Assists internal and external intercostal muscles |
