serrato posterior

Definitions of serrato posterior
  1. noun
    skeletal muscle that draws the rib cage backward and downward
    synonyms: músculo serrato posterior
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    types:
    músculo serrato posterior inferior, serrato posterior inferior
    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
    músculo serrato posterior superior, serrato posterior superior
    a thin quadrilateral muscle of the upper and dorsal part of the thorax; acts to elevate the upper ribs
    type of:
    músculo serrato, serrato
    any of several muscles of the trunk
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