transversus thoracis (muscle)

(redirected from musculus triangularis sterni)

trans·ver·sus tho·ra·cis (mus·cle)

internal muscle of thorax; origin, dorsal surface of xiphoid process and lower portion of dorsal surface of body of sternum; insertion, second to sixth costal cartilages; action, contributes to depression of ribs, narrowing chest; nerve supply, intercostal.
Farlex Partner Medical Dictionary © Farlex 2012
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