What does the Basilar Artery bifurcate into?

The Basilar Artery bifurcates into the two Posterior Cerebral Arteries (PCAs), not the Posterior Communicating Arteries. The bifurcation occurs at the level of the midbrain and supplies blood to the occipital lobes and the inferior surface of the temporal lobes, which are crucial for visual processing.

When considering the other options, the Anterior Cerebral Arteries and Middle Cerebral Arteries arise from the Internal Carotid Artery, not the Basilar Artery. These arteries serve different regions of the brain, with the Anterior Cerebral Arteries primarily supplying the medial portions of the frontal lobes and superior medial parietal lobes, and the Middle Cerebral Arteries supplying the lateral aspects of the cerebral hemispheres.

The Vertebral Arteries do not bifurcate from the Basilar Artery; instead, they converge to form the Basilar Artery at the base of the skull. The Posterior Communicating Arteries are small vessels connecting the anterior and posterior circulations of the brain but are not associated with the bifurcation of the Basilar Artery.

Understanding the specific branches originating from major arteries is essential in interventional radiology, as it guides