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12 Cards in this Set
- Front
- Back
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sternocleidomastoid origin
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sternum and clavicle
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sternocleidomastoid insertion
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mastoid process of temporal bone
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sternocleidomastoid action
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acting together (bilaterally), flex cervical portion of vertebral column, extend head, and elevate sternum during forced inhalation; acting singly, laterlly flex to the same side and rotate head to side opposite contracting muscle
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semispinalis capitis origin
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transverse processes of first 6 or 7 thoracic vertebrae and 7th cervical vertebra, and articular processes of 4th,5th,&6th cervical vertebrae
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semispinalis capitis insertion
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occipital bone between superior and inferior nuchal lines
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semispinalis capitis action
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acting together, extend head; acting singly, rotate head to side opposite contracting muscle
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splenius capitis origin
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ligamentum muchae and spinous processes of 7th cervical vertebra and first 3 or 4 thoracic vertebrae
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splenius capitis insertion
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occipital bone and mastoid process of temporal bone
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splenius capitis action
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acting together, extend head; acting singly, laterally flex and rotate head to same side as contracing muscle
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longissimus capitis origin
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transverse processes of upper 4 thoracis vertebrae and articular processes of last 4 cervical vertebrae
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longissimus capitis insertion
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mastoid process of temporal bone
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longissimus capitis action
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acting together, extend head; acting singly, laterally flex and rotate head to same side as contracting muscle
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