The Brain

The average brain weighs 3 pounds. The brain can be divided into two halves called the cerebral hemispheres. Each hemisphere is divided into four lobes by various sulci and gyri. The sulci are the groves and the gyri are the bumps that can be seen on the surface of the brain. Most people have the same pattern of sulci and gyri on the cerebral cortex, but no two brains are the same!

The first of four lobes is call the Frontal Lobe. It is located in the front and is colored blue in the picture above. Some of the things this part of the brain is in charge if include reasoning, planning, parts of speech and movement (motor cortex), emotions, and problem-solving.

The second lobe is called the Parietal Lobe. It is located behind the frontal lobe and is colored red in the picture above. This part of the brain controls the perception of stimuli related to touch, pressure, temperature and pain.

The third lobe is called Temporal Lobe. It is located below the frontal lobe and the parietal lobe and is colored green in the picture above. This part of the brain controls the perception and recognition of auditory stimuli (hearing) and memory (hippocampus).

The last lobe is called the Occipital Lobe. It is behind the parietal and temporal lobe and is colored yellow in the picture above. This part of the brain controls the many aspects of vision.