Which part of the brain receives blood from the posterior cerebral artery?

The visual cortex is the correct answer because it is primarily supplied by the posterior cerebral artery (PCA). This artery branches off from the basilar artery and plays a critical role in supplying oxygenated blood to areas of the brain that are responsible for processing visual information. The visual cortex, located in the occipital lobe, is specifically involved in the interpretation of visual stimuli, and this vascular support is essential for its function.

In contrast, the auditory cortex, which is responsible for processing sound, is primarily supplied by the middle cerebral artery (MCA). The motor cortex, where voluntary movements are initiated, also predominantly receives blood from the MCA. The somatosensory cortex, which processes sensory information from the body, is similarly reliant on the MCA for its blood supply. Thus, the PCA's unique role in supplying the visual cortex distinguishes it from the other regions mentioned.