🧠

Exploring Brain Structures and Functions

Apr 22, 2025

Lecture Notes: Internal Structures of the Brain

Key Brain Structures

Central Sulcus

  • Location: This is a groove on the side of the brain.
  • Function: Separates the frontal lobe from the parietal lobe.

Gyri Associated with the Central Sulcus

  • 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.

Important Definitions

  • Sulcus: A groove or furrow on the brain's surface.
  • Gyrus: A ridge on the brain, typically surrounded by one or more sulci.

Summary

  • The central sulcus is important for delineating major lobes of the brain and serves as a landmark for locating key functional areas such as the motor and somatosensory cortexes.