Definition of Serratus posterior superior
Serratus posterior superior: One of the serratus muscles of the back and thorax. The serratus posterior superior originates from the spinous processes of two lower cervical and two upper thoracic vertebrae and it inserts into the lateral side of angles of the second to fifth ribs. It raises the ribs in inspiration.
Last Editorial Review: 6/14/2012
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?