Question

What is the composition of Arbor vitae?
A. Grey matter
B. Neuroglial cells
C. White matter
D. All of the above.

Answer 1

Hint: Arbor vitae is a part of the brain especially in the cerebellum. It helps in motor sensing and acts as a bridge between body parts and brain.

Complete answer:
Brain consists of grey and white matter. Grey matter is component of the central nervous system which consisting of neuronal cell bodies, neuropil that is dendrites and unmyelinated axons, glial cells that are astrocytes and oligodendrocytes, synapses that is small space between two consecutive neurons or nerve cells and capillaries
Arbor vitae is a cerebellar matter and it brings sensory and motor information to and from the cerebellum. Arbor vitae is situated in the deep cerebellum and cerebellum is the part of the hind brain which helps to maintain the control and coordination between right and left parts of the body by controlling the left and right side of the brain. Hindbrain consists of grey and white matter of the brain and white matter consists of the myelinated sheath.
Arbor vitae is a very crucial part of the brain which is also known as the “tree of life”.
Arbor vitae is present in the centre of the cerebellum and helps provide sensory information from the body to brain and from brain to other parts of the body thus it acts as a bridge in-between brain and body. It helps in getting information and decides accordingly that which function needs to be performed in which situation.

So, in this image we can see different parts of the brain and identify Arbor vitae.
Thus, after discussing all the points we can conclude that Arbor vitae is the white matter which is present in the cerebellum of the brain. It has a tree-shaped structure thus it is also called a tree of life. And it helps in the conduction of sensory and motor impulse to the cerebellum.

So, option ‘C’ is correct, that is white matter.

Note: Grey matter and white matter are two different parts of the brain and Arbor vitae consists of only white matter and Grey matter consist of all soma cells like nerve cells, glial cells, etc.