Medical Dictionary

semispinalis thoracis

noun semispinalis tho·ra·cis \-thə-ˈrā-səs\

Medical Definition of SEMISPINALIS THORACIS

:  a deep longitudinal muscle of the back that arises from the transverse processes of the lower five thoracic vertebrae, is inserted into the spinous processes of the upper four thoracic and lower two cervical vertebrae, and with the semispinalis cervicis acts to extend the spinal column and rotate it toward the opposite side
April 28, 2015
portmanteau Hear it
a word formed by the blending of words
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