Arch Aortography and Cervicocerebral Angiography in the Rhesus Monkey Correlated with Corrosion Casts

Arch aortography and cervicocerebral angiography were performed in ten Rhesus monkeys. In five of these animals methyl methacrylate casts of the aorta and its cervicocerebral branches were produced. The resultant casts of the arterial tree were used to understand better and to describe the radiographic anatomy of the aortic arch and cervicocerebral arteries. Branching of the aortic arch in monkeys is similar 10 that in the lower animals. The external carotid artery divides into two branches several millimeters after its origin. This type of branching is different from that in man. The intracranial circulation of the monkey has a close similarity to man. Existence of a common trunk of the anterior cerebral arteries, the origin of the posterior inferior cerebellar arteries from the basilar artery and the presence of a relatively large ophthalmic artery constitute the main differences between the monkey and man.