Why is the brain split into two hemispheres?
Why is the brain split into two hemispheres?
Scientists have long known that the differnt halves of human brains perform different functions. For example, the left half — or left hemisphere — is generally responsible for language and speech, whereas the right one generally handles emotions and facial recognition.
What is the split-brain theory?
The split-brain phenomenon is caused by the surgical severing of the corpus callosum, the main route of communication between the cerebral hemispheres. The classical view of this syndrome asserts that conscious unity is abolished.
Is the human brain split into two hemispheres?
NARRATOR: 85% of our brain consists of the cerebral cortex, which is divided into two hemispheres, each with four main lobes. The cortex handles many of our higher functions.
What divides the right and left brain?
A fissure or groove that separates the two hemispheres is called the great longitudinal fissure. The two sides of the brain are joined at the bottom by the corpus callosum. The corpus callosum connects the two halves of the brain and delivers messages from one half of the brain to the other.
What is the right hemisphere of the brain responsible for?
The right side controls attention, memory, reasoning, and problem solving. RHD may lead to problems with these important thinking skills. A person with RHD may have trouble communicating with others because of this damage.
Is the brain divided into two parts?
Cerebrum. The cerebrum, which forms the major portion of the brain, is divided into two major parts: the right and left cerebral hemispheres. The cerebrum is a term often used to describe the entire brain. A fissure or groove that separates the two hemispheres is called the great longitudinal fissure.
What are the two sides of the brain called?
The cerebrum is divided into two halves: the right and left hemispheres (Fig. 2) They are joined by a bundle of fibers called the corpus callosum that transmits messages from one side to the other. Each hemisphere controls the opposite side of the body.
