The semispinalis cervicis is the cranial continuation of the semispinalis thoracis
Origin: Arises from the tendon of the most cranial thoracic segment of the semispinalis thoracis and from the cranial border of the first thoracic spine.
Insertion: On the spinous processes of the fifth to second cervical vertebrae.
Action: To fix the thoracic vertebral column and to raise the neck.
Nerve: Medial branch of the dorsal branches of the cervical and thoracic nerves.