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ORIGIN, INSERTION, ACTION BILATERALLY, ACTION UNILATERALLY

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Muscle
Origin
Insertion
Actiona Bilaterally
Action Unilaterally
Prevertebral Group       Play a role in neck flexion   Postural control  
🗑
Postvertebral Group   Splenius Capitis   Splenius Cervicis      
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Splenius Capitis   Spinous processes of C7-T3   Lateral occiput and mastoid process   Neck and head extension   Lateral bending and rotation of the head and neck to same side  
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Splenius Cervicis   Spinous processes of T3-T6   TVP's of C1-C3   Neck and head extension   Lateral bending and rotation of head and neck to same side  
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Suboccipitals       Flexion, extension, lateral bending, and rotation of the head    
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Sternocleidomastoid   Sternum and clavicle   Mastoid Process   Flexion of the neck   Lateral bending and rotation of head and neck to same side  
🗑
Scalenes (anterior, middle and posterior)   TVP's of cervical vertebrae   Ribs 1-2   Flexion of the head and neck   Laterally bending and rotation of head and neck to same side  
🗑


   

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Created by: SaraBranch
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