serratus posterior

Thesaurus

Noun

1.

serratus posterior - skeletal muscle that draws the rib cage backward and downward musculus serratus posterior, posterior serratus muscle serratus, serratus muscles - any of several muscles of the trunk serratus 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 serratus posterior superior - a thin quadrilateral muscle of the upper and dorsal part of the thorax; acts to elevate the upper ribs