Semispinal muscle of neck



semispinal muscle of neck n.
A muscle continuous with the semispinal muscle of the thorax, with origin from the second to the fifth thoracic vertebrae, with insertion into the axis and the third to the fifth cervical vertebrae, with nerve supply from the dorsal branches of the cervical and thoracic nerves, and whose action extends the cervical spine.

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  • Semispinal muscle of thorax

    semispinal muscle of thorax n. A muscle with origin from the fifth to the eleventh thoracic vertebrae, with insertion into the first four thoracic vertebrae and the fifth and seventh cervical vertebrae, with nerve supply from the dorsal branches of the cervical and the thoracic nerves, and whose action extends the vertebral column.

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