Figure 1. Photograph of the anterior aspect of forearm right of a Cebus libidinosus (C.l.).

1).brachioradialis muscle, 2) flexor carpi radialis muscle, 3) flexor digitorum superficialis muscle, 4) palmaris longus muscle, 5) flexor carpi ulnaris muscle and, 6) pronator teres muscle. (bar = 1,2 cm).