Hemispheres
Hemispheres (Medicine)
Hemispheres (pronounced: heh-mi-spheres) are a term used in the field of medicine to refer to the two halves of the brain, known as the left and right hemispheres. Each hemisphere is responsible for controlling the opposite side of the body, and they are connected by a band of nerve fibers called the corpus callosum.
Etymology
The term "hemisphere" comes from the Greek words "hemi," meaning half, and "sphaira," meaning sphere. This is a reference to the spherical shape of the brain and the division into two halves.
Related Terms
- Cerebral Hemisphere: This term refers specifically to the two halves of the cerebrum, the largest part of the brain. The cerebral hemispheres are responsible for higher brain functions such as thought, emotion, and language.
- Cerebellar Hemisphere: The two halves of the cerebellum, a part of the brain located at the back of the skull. The cerebellar hemispheres help control movement, balance, and coordination.
- Lateralization of Brain Function: This is the concept that certain mental processes are mainly controlled by one hemisphere or the other. For example, in most right-handed people, the left hemisphere is dominant for language.
- Corpus Callosum: The large band of nerve fibers that connects the two hemispheres and allows them to communicate with each other.
- Brain: The organ of the body in the head that controls functions, movements, sensations, and thoughts.
See Also
External links
- Medical encyclopedia article on Hemispheres
- Wikipedia's article - Hemispheres
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