semispinalis cervicis

noun
semispinalis cer·​vi·​cis | \-ˈsər-və-səs \

Medical Definition of semispinalis cervicis 

: a deep longitudinal muscle of the back that arises from the transverse processes of the upper five or six thoracic vertebrae, is inserted into the cervical spinous processes from the axis to the fifth cervical vertebra, and with the semispinalis thoracis acts to extend the spinal column and rotate it toward the opposite side

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