title: Observations on the ascending aortic fold in two chacma baboons (Papio hamadryas ursinus).
abstract: Baboons (Papio) were used to study the ascending aortic fold. The fold was present in two out of 20 hearts examined. Its position and shape was comparable to that observed in human subjects. The principal difference was the absence of paraganglia. The functional role of the baboon fold is unclear.
authors.affiliation: Medical University of Southern Africa, Department of Human Anatomy, Medunsa.
authors.forename: G T
authors.initials: GT
authors.lastname: Lebona
mesh_terms: D000818:Animals; D000835:Animals, Wild; D001013:Aorta, Thoracic / Q000033:anatomy & histology*; D005260:Female; D015186:Hominidae / Q000033:anatomy & histology*; D006801:Humans; D008297:Male; D010215:Papio / Q000033:anatomy & histology*; D017539:Tunica Intima / Q000033:anatomy & histology