What is a brain?

You all have brains, animals have brains and I have a brain. So the question arises. Why do we have the brains? We are a kind of animals, animals use nerves and they have muscles to move around. So, we have to organize that movement, feeling and all. So we have a brain.

The brain is one of the most valuable organs in the human’s body. It is one of the most complex and magnificent organs in the human body. The brain is a soft mass of supportive tissues and nerves connected to the spinal cord. Some of the nerves in the brain go right to the eyes, ears and other parts of the head. Other nerves connect the brain with other parts of the body through the spinal cord to control personality, senses and body functions from breathing to walking.

It controls the ability to think, talk, feels, sees, hears, remembers things, walks and much more. It even controls our breathing. Our brain gives us an awareness of ourselves and of our environment, processing a constant stream of sensory data. It controls our muscle movements, the secretions of our glands, and even our breathing and internal temperature. Every creative thought, feeling, and the plan is developed by our brain. The brain’s neurons record the memory of every event in our lives. So what do you think? I think it’s right. Together, the brain, spinal cord, and nerves form the central nervous system.

Parts Of The Brain.

The brain has three main parts:brain-anatomy.jpg

  • Cerebrum

  • Cerebellum

  • Brainstem

The cerebrum

The cerebrum, the large, outer part of the brain, controls reading, thinking, learning, speech, emotions and planned muscle movements like walking. It also controls vision, hearing and other senses.

The cerebrum is divided two cerebral hemispheres (halves): left and right. The right half controls the left side of the body. The left half controls the right side of the body.

Each hemisphere has four sections, called lobes: frontal, parietal, temporal and occipital. Each lobe controls specific functions. For example, the frontal lobe controls personality, decision-making, and reasoning, while the temporal lobe controls, memory, speech, and sense of smell.

The cerebellum

The cerebellum, in the back of the brain, controls balance, coordination and fine muscle control (e.g., walking). It also functions to maintain posture and equilibrium.

The brain stem

The brain stem, at the bottom of the brain, connects the cerebrum with the spinal cord. It includes the midbrain, the pons, and the medulla. It controls fundamental body functions such as breathing, eye movements, blood pressure, heartbeat, and swallowing.


Further reading on John Hopkins.


Author: Wan


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