| smaller pectoral muscle | |
noun | |
| a skeletal muscle that draws down the scapula or raises the ribs [syn: pectoralis minor] |
smaller pectoral muscle n.
A muscle with origin from the third to the fifth ribs, with insertion into the coracoid process of the scapula, with nerve supply from the anterior thoracic nerve, and whose action lowers the scapula or raises the ribs.