| 单词 | serratus posterior |
| 释义 | serratus posterior (extremely rare) n WORD FAMILY serratus posterior n skeletal muscle that draws the rib cage backward and downward Syn|Hypo|Hyper musculus serratus posterior, posterior serratus muscle 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 superiora thin quadrilateral muscle of the upper and dorsal part of the thorax; acts to elevate the upper ribs serratus, serratus muscles any of several muscles of the trunk |
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