serratus posterior superior
Medical Definition of serratus posterior superior
: a thin quadrilateral muscle of the upper and dorsal part of the thorax that arises chiefly from the spinous processes of the lowest cervical and the first two or three thoracic vertebrae, is inserted into the second to fifth ribs, and acts to elevate the upper ribs
Seen and Heard
What made you want to look up serratus posterior superior? Please tell us where you read or heard it (including the quote, if possible).