The occipital sulcus separates which lobes?

The occipital sulcus separates which lobes?

• A. Frontal from parietal
• B. Occipital from parietal
• C. Temporal from occipital
• D. Cerebellum from brainstem

Answer: (B)

The groove that marks the boundary between the occipital and parietal lobes is the parieto-occipital sulcus, and in some texts it’s referred to as an occipital sulcus. This sulcus sits at the border where the occipital lobe ends and the parietal lobe begins, so it best fits the idea of separating those two lobes. Frontal and parietal lobes are separated by the central sulcus, not the occipital sulcus. The boundary between temporal and occipital areas isn’t defined by a single, widely named sulcus in the same straightforward way, and the cerebellum and brainstem are separate structures, not cerebral lobes bounded by a sulcus.

The groove that marks the boundary between the occipital and parietal lobes is the parieto-occipital sulcus, and in some texts it’s referred to as an occipital sulcus. This sulcus sits at the border where the occipital lobe ends and the parietal lobe begins, so it best fits the idea of separating those two lobes.

Frontal and parietal lobes are separated by the central sulcus, not the occipital sulcus. The boundary between temporal and occipital areas isn’t defined by a single, widely named sulcus in the same straightforward way, and the cerebellum and brainstem are separate structures, not cerebral lobes bounded by a sulcus.