Where is the central sulcus located in a standard brain model?

The central sulcus is a prominent feature of the brain's anatomy and plays a crucial role in defining various functional areas. It separates two significant regions: the frontal lobe, which is involved in higher cognitive functions, and the parietal lobe, associated with sensory processing.

In a standard brain model, the central sulcus is specifically positioned between the third gyrus (G3) and the fourth gyrus (G4). This anatomical landmark is essential for identifying cortical regions, particularly the motor cortex located in the precentral gyrus (just in front of the central sulcus) and the somatosensory cortex located in the postcentral gyrus (just behind the central sulcus). Understanding this location is critical for neuroscience and clinical practices, as it aids in mapping brain functions and interpreting neurological conditions.

The other locations provided do not accurately reflect the anatomical position of the central sulcus, further confirming that position between G3 and G4 is indeed correct.