The Subclavius Posticus Muscle: its Phylogenetic Retention and Clinical Relevance
Int. j. morphol; 24 (4), 2006
During routine dissection practice a supernumerary muscle was found on the right side infraclavicular region of a male cadaver. This muscle was arising from the superior surface of the first rib and its coastal cartilage and inserted to a thick ligament that extended from the medial end of the suprascapu...