Chiari Malformation
Definition
Chiari malformation is a congenital anomaly (a condition that is present at birth), in which parts of the brain protrude through the opening in the base of the skull into the spinal column.
Description
In order to explain the various components of Chiari malformation, it is helpful to describe a few parts of the brain and their functions. There are four major regions of the brain affected in Chiari malformation: the cerebellum, the brain stem, the ventricles, and the cerebrum. The cerebellum is located at the base of the skull and is divided into two parts or hemispheres with a third section that connects the hemispheres. Its main purpose is to coordinate body movements. The brain stem is located in front of the cerebellum and is composed of two parts. It regulates involuntary...
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