Which artery supplies blood directly to the occipital lobe?

The posterior cerebral artery is responsible for supplying blood directly to the occipital lobe. This artery branches directly from the basilar artery and is crucial for providing oxygenated blood to the specific regions of the brain involved in visual processing, which are located primarily in the occipital lobe. The health of the posterior cerebral artery is key to maintaining the functionality of this part of the brain.

The middle cerebral artery primarily supplies the lateral surfaces of the cerebral hemispheres, including parts of the frontal, parietal, and temporal lobes, but not the occipital lobe. The internal carotid artery is a major supplier of blood to the brain, but it branches into arteries that primarily serve the anterior and middle regions, rather than focusing directly on the posterior areas such as the occipital lobe. The posterior cerebellar artery, on the other hand, primarily supplies the cerebellum and does not play a significant role in supplying the occipital lobe. Thus, the posterior cerebral artery is the most direct source of blood for that region.