Splenius Cervicis Muscle
The splenius cervicis is an upper back muscle that attaches to the neck and spine. It belongs to the intrinsic muscles of the back.
a. Spinous processes of T3-T6.
a. Transverse processes of C1-C3.
Actions of the Splenius Cervicis Muscle
a. Bilaterally extends head and neck.
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b. Unilaterally laterally flexes head and neck to same side.
c. Unilaterally rotates head and neck to same side.
Nerve to the Splenius Cervicis Muscle
a. Dorsal rami of middle and lower cervical spinal nerves.