Semispinalis
Muscle Name: Semispinalis
Medical Name:
Other Names:
Head:
Semispinalis Capitis Movement:
Extension of the head and neck (bilateral contraction)
Tilting the head backward
Lateral flexion of the head and neck (unilateral contraction)
Tilting the head to the side
Rotation of the head and neck (unilateral contraction)
Turning the head to the opposite side
Attachment:
Origin:
Transverse processes of C7-T6 vertebrae Articular processes of C4-C6 vertebrae
Insertion:
Between the superior and inferior nuchal lines of the occipital bone
Semispinalis Cervicis Movement:
Extension of the cervical spine (bilateral contraction)
Lateral flexion of the neck (unilateral contraction)
Bending the neck to the side
Rotation of the neck (unilateral contraction)
Turning the neck to the opposite side
Attachment:
Origin:
Transverse processes of T1-T6 vertebrae
Insertion:
Spinous processes of C2-C5 vertebrae
Semispinalis Thoracis Movement:
Extension of the thoracic spine (bilateral contraction)
Straightening the upper back
Lateral flexion of the thoracic spine (unilateral contraction)
Bending the upper back to the side
Rotation of the thoracic spine (unilateral contraction)
Rotating the upper back to the opposite side
Attachment:
Origin:
Transverse processes of T6-T12 vertebrae
Insertion:
Spinous processes of C6-T4 vertebrae
Related Muscles:
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