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7 Cards in this Set
- Front
- Back
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Sternocleidomastoid
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O: Sternum, Clavicle
I: Mastoid Process A: Bilateral: Flex of neck Unilateral: Lateral Flex of neck-the muscle of same side is contracting Rotate head- the muscle opposite the rotation contracts |
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Rectus abdominis
only action |
I:Xiphoid process, ribs 5,6,7
A: Flexion of trunk, Compression of abdominal contents (guts) |
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Internal oblique
only action |
I:Lower 4 ribs (9-12)(not all)
A: Bilateral: Flexion of trunk (think sit ups), Compression of guts Unilateral: Lateral Flex, Rotation of trunk (think of elbow to opp knee) |
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Intercostal
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O: Between ribs
I: Between ribs A: Elevates ribs |
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Transverse abdominis
only action |
A: Compression of ab contents
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Erector spinae
only action |
A: Bilateral: Ext of spine
Unilateral: Lateral flex of spine |
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Diaphragm
only action and innervation |
A: Increases diamter of thoracic cavity in inspiration
Innervation: Phrenic nerve |
