Question

Which part of the brain contains such an area that is neither clearly sensory or motor in function?
A) Medulla
B) Cerebral cortex
C) Grey matter of the cerebrum
D) Both A and C

Answer 1

Hint: The brain is one of the body's largest and most complicated organs. It is made up of over 100 billion nerves that communicate with each other via trillions of synapses. The brain is made up of a number of specialised sections.

Complete answer:
One of the three sections that make up the brainstem is the medulla oblongata (medulla). It is the lowest of the three, and it connects the pons to the spinal cord above and below. The medulla houses the brainstem nuclei as well as important ascending and descending nerve networks.

The majority of the brain's neuronal cell bodies are found in grey matter. Regions of the brain involved in muscle control and sensory perception, such as sight and hearing, memory, emotions, speech, decision-making, and self-regulation, are all part of the grey matter.

Sensory, motor and association areas are the three functional areas of the cerebral cortex. Because of its associative nature, this association area does not belong to either the major sensory or motor regions. These associate regions' principal purpose is to create a constant understanding of the world. It aids in communication, intellectual thinking, and language.

These relationship regions are arranged in an interlaced network. As a result, the right answer is the 'cerebral cortex.'

The cerebral cortex is the most important part of the brain. Represents a highly developed structure in humans that is responsible for the most well-known functions we identify with the human brain. The cerebral cortex has between 14 billion and 16 billion neurons.

Therefore the correct answer is option ‘B’.

Note: It is the brain's highly convoluted exterior surface. The convolution of the surface and folding of the whole structure of the cortex resulted from the cortex's volume increasing faster than the skull volume during evolution, resulting in its characteristic shape. The cerebral cortex would cover several yards or metres if it were removed and unfolded.