serratus posterior inferior muscle

(redirected from inferior posterior serratus muscle)

ser·ra·tus pos·ter·i·or in·fer·i·or mus·cle

(sĕ-rā'tŭs pos-tēr'ē-ŏr in-fēr'ē-ŏr mŭs'ĕl)
Lower intermediate muscle of back; origin, with latissimus dorsi, from spinous processes of two lower thoracic and two upper lumbar vertebrae; insertion, into lower borders of last four ribs; action, draws lower ribs backward and downward; nerve supply, ninth to twelfth intercostal.
Synonym(s): inferior posterior serratus muscle, musculus serratus posterior inferior.
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