Bilateral Chondroepitrochlearis Muscle: Case Report, Phylogenetic Analysis, and Clinical Significance

Figure 2

Photographs of the left chondroepitrochlearis muscle (CEM): (a) highlights the course of the CEM from its origin in the thorax through to its insertion into the fibrous band (tuberoepicondylar band, tb) (note: pectoralis major (PM) has been reflected cranially). (b) insert from (a) that highlights the course of the CEM in the axilla and its suspension by the fascial sling (fs). The photograph depicts two separate CEM slips at insertion. One slip inserts into the deep brachial fascia (black asterisk) and the other (white asterisk) fuses with the tb.