A flow void is a place in the artery that's not showing any blood flow. Dominant suggests that there's one major area of missing flow.
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The left & right vertebral arteries.
The drop of blood travels as follows: From the aortic arch to the left subclavian artery. Then through the left vertebral, passing though the transverse foramina of the cervical vertebrae (from C6-C1) At the C1 level the vertebral arteries travel across the posterior arch of the atlas before entering the foramen magnum into the skull. From here, it merges with with that vertebral artery on the right side to become the basilar artery. The blood then travels through a branch of the basilar known as the posterior cerebral artery. This artery's branches are divided into two sets, the ganglionic branches and, the cortical branches. The particular artery largely supplying the occipital lobe is known as the parietoöccipital or parieto-occipital artery, and is a cortical branch.
Splenic Artery, Left Gastric Artery, and Hepatic Artery
The left and right corotid arteries and the vertebral arteries which join together to form the basilar artery (forming the circle of willis).
The coronary arteries. These leave the aorta and branch out over the heart. Blood only flows though these vessels during diastole because during systole they are blocked off by the aortic valve. The two main vessels that arise from the Sinus of Valsalva, located just above the aortic valves, are the right and left cornary arteries. The right coronary artery mainly supply the right ventricle and the sinoatrial node. The left main artery is divided into the left anterior descending artery and the left circumflex artery. The left anterior descending artery mainly supplies the anterior and septal portion of the heart, namely the left ventricle. The left circumflex artery supplies the lateral walls of the left ventricle. Finally, the posterior descending artery can arise from either the right or left coronary artery. If the posterior descending artery arises from the right coronary artery, the heart is termed right heart dominant, which is seen in approximately 70% of individuals. If the posterior descending artery arises from the left circumflex artery, it is termed left heart dominance. It is also possible for the posterior descending artery to arise from both the right and left coronary artery. In this configuration, the heart is considered co-dominant. The posterior descending artery mainly supplies the inferior wall of the left ventricle and the inferior portion of the septal wall.