Meaning of Brain

What is Brain:

The cerebrum is part of the nervous system and is one of the organs of the brain. All vertebrate animals have a brain, although it varies in size. In all cases, the brain is located in the head, protected by the skull.

The word brain comes from the Latin cerebrumwhich means something like “what is on top of the head”.

The brain acts as a centralizing organ for all the activities of the body. It is, therefore, the most complex organ.

A widespread error is to use the word brain as a synonym for the brain, or to think that the brain is a part of the brain.

On the contrary, Along with the cerebellum and brainstem, the cerebrum is one of the parts of the brain. What is certain is that the brain is the largest of these.

In the figurative sense, the intellectual author of a plan is called the brain, that is, the person who creates, promotes and coordinates the execution of a certain plan of operations (he does not necessarily participate in it). For example: “Francisco Perez was found to be the mastermind of the ‘casino robbery’ operation that the police thwarted last week.”

A person who is very outstanding in cultural and scientific activities is also called a brain. For example: “Albert Einstein was a physics mastermind.” “The neighbor’s son is the brains of her classroom.”

Brain functions

The brain is responsible for various vital functions. The brain allows perception through the senses of sight, smell, taste, hearing and touch. Through the brain we perceive the signals transmitted through the eyes, ears, palate, nose and skin.

In it, there are also cognitive and emotional operations, that is, learning and emotional stimuli. In the human brain, in particular, the language that allows communication.

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Also, the brain coordinates the functioning of the other organs through nerve signals. The brain controls voluntary motor commands Y send signals of sleep, hunger signals, thirst signals, satiety signals, etc. The communication of the brain with the other organs is, therefore, constant.

See also nervous system.

parts of the brain


The brain has two hemispheres: one right and one left. The brain is made up of gray matter or substance Y white matter or substance. The gray matter that covers the hemispheres is called cerebral cortex.

Among the parts of the brain we can mention the following:

  • frontal lobe: regulates voluntary motor activity, reasoning, communication, memory, and personality. The frontal lobe is more developed in humans.
  • Temporal lobe: auditory sensations, interpretation of auditory sensations and understanding of language, memory, pattern recognition (faces, voices, words, data), behavior and personality.
  • parietal lobe: processes sensory information of all kinds; participates in other activities together with neighboring lobes.
  • Occipital lobe: image processing, eye movements, imagination.

See details in Parts of the brain.