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.
Nearby words
semisophisticated, semisphere, semispheric, semispinal muscle of head, semispinal muscle of neck, semispinal muscle of thorax, semistarvation, semisubmersible, semisubmersible rig, semisubterranean, semisulcus
The American Heritage® Stedman's Medical Dictionary
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