Anatomical study of the forearm deep muscles in Cebus paella (Linnaeus, 1766) - DOI: 10.4025/actascibiolsci.v27i3.1351

Abstract

Eight adult specimens of Cebus paella were used for anatomical muscles characterization. The animals were donated by the Brazilian Institute of Environment and Recyclable Natural Resources (Ibama – Instituto Brasileiro de Meio – Ambiente), from Sete Lagoas, state of Minas Gerais, Brazil, and sacrificed according to the recommendations of Brazilian College of Animal Experimentation (Cobea – Colégio Brasileiro de Experimentação Animal). This work was approved by ethics committee from UFU (Federal University of Uberlândia). The muscles (1) squared pronator, (2) deep fingers flexor and (3) long thumb flexor were studied. In human beings, the deep muscles of Cebus paella have some general common characteristics, but differ in form, vascularization and innervation. These differences should reflect the functional specialization of those muscles between the two species. The long thumb flexor muscle is important for human beings’ fingers movement since the force of hand in Cebus paella is a necessary characteristic to this species, according to its arboreous habit