Lecture on Brain Structure

Central Sulcus

• Location: Groove running along the side of the brain
• Function: Separates the frontal lobe from the parietal lobe

Gyri

• Gyrus Definition: Fat, lumpy structures in the brain
• Sulcus Definition: Grooves or dividers in the brain

Precentral Gyrus

• Location: In front of the central sulcus
• Function: Contains the primary motor cortex

Postcentral Gyrus

• Location: Behind the central sulcus
• Function: Contains the primary somatosensory cortex