PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The gray matter is usually present on the periphery while white matter is present towards the center in the brain If the gray matter is towards the periphery of the brain the white matter is towards the center
|
|
|
The gray matter is usually present on the periphery while white matter is present towards the center in the spinal cord If the gray matter is towards the periphery then the white matter is towards the center
|
|
|
The white matter is usually present on the periphery while gray matter is present towards the center in the brain If the white matter is towards the periphery of the brain then the gray matter is towards the center
|
|
|
The white matter is usually present on the periphery while gray matter is present towards the center in the spinal cord whereas the gray matter is present towards the center in the spinal cord.
|
Detailed explanation-1: -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.
Detailed explanation-2: -The white matter is found in the inner layer of the cortex, the optic nerves, the central and lower areas of the brain or brainstem, and surrounding the central shaft of gray matter in the spinal cord.
Detailed explanation-3: -The arrangement of gray and white matter in the spinal cord is relatively simple: The interior of the cord is formed by gray matter, which is surrounded by white matter (Figure 1.11A).
Detailed explanation-4: -Grey matter in the spinal cord is known as the grey column which travels down the spinal cord distributed in three grey columns that are presented in an “H” shape. The forward-facing column is the anterior grey column, the rear-facing one is the posterior grey column and the interlinking one is the lateral grey column.