NEET PG DENTAL EXAM

Detailed explanation-1: -The corpus callosum is the largest white matter structure in the brain, consisting of 200–250 million contralateral axonal projections and the major commissural pathway connecting the hemispheres of the human brain.

Detailed explanation-2: -The corpus callosum is composed of millions of nerve fibers that connect the two halves of the brain. These fibers traveling together from one cerebral hemisphere to the other form a brain structure easily visible to the beginning student of neuroanatomy.

Detailed explanation-3: -There are approximately 300 million axons (nerve fibres) in an average corpus callosum. It is located in the white matter of the cerebrum and is around 10cm long at the midline. This neural bridge is the largest white matter structure in the brain and only evolved in placental mammals.

Detailed explanation-4: -White matter is found in the deeper tissues of the brain (subcortical). It contains nerve fibers (axons), which are extensions of nerve cells (neurons). Many of these nerve fibers are surrounded by a type of sheath or covering called myelin. Myelin gives the white matter its color.