umls-concept:C0224362 | skos:definition | NCI: A triangular muscle in the back, connected to the vertebral column, arm, and shoulder. Its action involves adduction, medial rotation, and extension of the arm. (NCI),NCI: A triangular muscle in the back, connected to the vertebral column, arm, and shoulder. Its action involves adduction, medial rotation, and extension of the arm. | lld:umls |