The Brain and Cerebrum :
The cerebrum is the largest part of the brain and controls voluntary actions, speech, senses, thought, and memory.
The surface of the cerebral cortex has grooves or infoldings (called sulci), the largest of which are termed fissures. Some fissures separate lobes.
The convolutions of the cortex give it a wormy appearance. Each convolution is delimited by two sulci and is also called a gyrus . The cerebrum is divided into two halves, known as the right and left hemispheres. A mass of fibers called the corpus callosum links the hemispheres.
The right hemisphere controls voluntary limb movements on the left side of the body, and the left hemisphere controls voluntary limb movements on the right side of the body. Almost every person has one dominant hemisphere. Each hemisphere is divided into four lobes, or areas, which are interconnected.
The frontal lobes are located in the front of the brain and are responsible for voluntary movement and, via their connections with other lobes, participate in the execution of sequential tasks; speech output; organizational skills; and certain aspects of behavior, mood, and memory.
The parietal lobes are located behind the frontal lobes and in front of the occipital lobes.
They process sensory information such as temperature, pain, taste, and touch. In addition, the processing includes information about numbers, attentiveness to the position of one's body parts, the space around one's body, and one's relationship to this space.
The temporal lobes are located on each side of the brain. They process memory and auditory (hearing) information and speech and language functions.
The occipital lobes are located at the back of the brain. They receive and process visual information