Finally, the basilar artery divides into two posterior cerebral arteries. Both the short gastric arteries and the splenic artery supply it with blood. The internal carotid arteries are branches of the common carotid arteries. Angina commonly arises from vasospasm of the coronary arteries. It can induce spasm of the coronary arteries. Rarely, inflammation of the heart muscles, coronary arteries, and aorta are found. People with obesity are at increased risk of atherosclerosis of the coronary arteries. The internal carotid arteries continue forward as the middle cerebral arteries. There are some anastomoses between branches of the two coronary arteries. An autopsy showed nearly complete occlusion of the main coronary arteries. It is one of the coronary arteries. This contributes to the filling difficulties of the coronary arteries. Atherosclerosis is a disease marked by the hardening of arteries. Atherosclerosis is characterized by progressive inflammation of the walls of the arteries. These can originate in veins or arteries.