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13 Cards in this Set
- Front
- Back
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trapezius
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O: inion, ligamentum nuchae, and spinous processes of C7-T12
I: lateral 3rd of clavicle, acromion and spine of scapula A: descending part elevates, ascending part depresses, middle part/all together retracts scapula; ascending + descending rotate glenoid cavity superiorly N: spinal accessory nerve (CN XI), and C3-4 spinal nerves |
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lattisimus dorsi
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O: thoracolumbar fascia, illiac crest, inf 3 or 4 ribs, spinous process of inferior 6 thoracic vertebrae
I: floor of intertubercular sulcus of humerus A: extends, adducts, medially rotates humerus N: thoracodorsal nerve |
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rhomboid major & minor
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O: minor- nuchal ligament, spinous processes of C7 and T1
major- spinous processes of T2-T5 I: minor- smooth triangular area at medial end of scapular spine major- medial border of scapula A: elevates scapula, rotates glenoid cavity by rotating scapula |
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levator scapulae
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O: posterior tubercles of transverse processes of C1-C4 vertebrae
I: medial border of scapula superior to root of scapular spine A: elevates scapula, rotates glenoid cavity inferiorly by rotating scapula N: dorsal scapular nerves (C4, C5); cervical nerves (C3, C4) |
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serratus posterior superior
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O:
I: ribs A: elevates upper ribs (resp. mm) N: |
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serratus posterior inferior
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O:
I: ribs A: depress lower ribs (resp. mm) N: |
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splenius
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O:
I: A: 1 contracts- head moves back and to the same side. 2 contract- neck extends N: |
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illiocostalis
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(most lateral of erector spinae)
O: broad tendon from post. part of iliac crest, post. sacrum, sacroiliac ligaments, sacral & inf. lumbar spinous processes, supraspinous ligament I: ribs, cervical transverse processes A: extension of spine N: dorsal primary ramii of spinal nn |
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longissimus
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(intermediate of erector spinae)
O: broad tendon from post. part of iliac crest, post. sacrum, sacroiliac ligaments, sacral & inf. lumbar spinous processes, supraspinous ligament I: ribs, cervical vertebrae (transverse processes), and mastoid process A: extension of spine N:dorsal primary ramii of spinal nn |
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spinalis
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(most medial of erector spinae)
O: broad tendon from post. part of iliac crest, post. sacrum, sacroiliac ligaments, sacral & inf. lumbar spinous processes, supraspinous ligament I: spinous processes A: extension of spine N:dorsal primary ramii of spinal nn |
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rotatores
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transversospinalis mm (spans 1 interspace)
O: transverse process I: spinous process A: rotate & laterally bend spine N: posterior ramii of spinal nn |
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multifidus
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transversospinalis mm (spans 3 vertebrae)
O: transverse process I: spinous process A:rotate & laterally bend spine N: posterior ramii of spinal nn: |
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semispinalis
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transversospinalis mm (spans 5 vertebrae)
O: transverse process of C4-T12 I: spinous process A: rotate & laterally bend spine N:posterior ramii of spinal nn |
