Question

Which of the following has H-shaped grey matter?
A. Cerebrum
B. Medulla oblongata
C. Cerebellum
D. Spinal cord

Answer 1

Hint: The grey matter in the brain is found in the outermost layer, unlike the anatomy of the spinal cord. The cortex of the brain is the grey matter that surrounds the cerebrum. The cerebral cortex and the cerebellar cortex are the two major cortexes in the brain. The cerebral cortex, the brain's outer layer, is made up of columns of grey matter neurons, with white matter beneath. Many aspects of higher education, including attention, memory, and cognition, rely on this area.

Complete answer:
The grey column, which goes down the spinal cord in three grey columns that form a "H" shape, is known as grey matter in the spinal cord. The anterior grey column is the forward-facing one, the posterior grey column is the backward-facing one, and the lateral grey column is the interlinking one.
The spinal cord has a central canal, grey matter, and white matter, with an H-shaped grey matter in the centre. It has a lot of cell bodies but only a few myelinated axons. H is ventral horns are wider than his dorsal horns in this image. Gray matter is the outer layer of the brain and is primarily made up of neuron cell bodies. White matter makes up the inner layer. It is made up of axons that connect to form nerves. As a result, D is the correct answer.
The grey matter, in the center of the cord, is shaped like a butterfly and consists of cell bodies of interneurons and motor neurons, as well as neuroglia cells and unmyelinated axons.

Hence, option (D) Spinal cord is the correct answer.

Note:-
Bones, discs, ligaments, and muscles protect the spinal cord. The vertebrae are 33 bones that make up the spine. Each vertebra has a hole in the centre (called the spinal canal) through which the spinal cord flows. There are discs between the vertebrae that act as cushions or shock absorbers for the spine.