musculus serratus posterior

Synonyms:

posterior serratus muscle, serratus posterior

Types:

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

Type of:

serratus, serratus muscles

any of several muscles of the trunk