serrato posterior inferior

Definitions of serrato posterior inferior
  1. noun
    a thin quadrilateral muscle at the junction of the thoracic and lumbar regions; acts to counteract the pull of the diaphragm on the ribs to which it is attached
    synonyms: músculo serrato posterior inferior
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    type of:
    músculo serrato posterior, serrato posterior
    skeletal muscle that draws the rib cage backward and downward
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