The Brain: Intelligence, Interprets Senses, Initiates Body Movements (Essay Sample)

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The Brain
In humans, the brain sets out to be the most complex part. It is the seat of intelligence, interprets senses, initiates body movements and controls our behavior and lies in a bony shell that is washed by a protective fluid. The brain is the source of all the qualities that define humans. It gives us the awareness of our environment and that of ourselves by processing a stream of sensory data. Therefore, every plan, feeling and thought is developed by the brain. Due to the above few facts about the human brain, makes it to be the most complicated organ and remains the exciting frontier to be explored. Therefore, scientists, doctors, psychologists and technologists have embarked to discover how the human brain works and how it can be boosted.
FACTS
Due to the evolution of human beings, the brain is double the size before the human started to evolve. Despite weighing 3 pounds, 20% of the fuel taken by the body is consumed by the brain generating enough energy that will keep a light ball burning. In the basement is the Brain Stem that supports the brain. The Brain Stem in humans is similar to that of reptiles and other mammals. It is the one that keeps us a live and governs vital functions of humans such as heart rate, digestion and blood pressure. So without this part humans will not be in existence.
Also, the brain has a command center located in the Limpic System that controls the emotions and other activities. The tissues are not bigger than a finger nail but they are the brains primary central command for human emotions.
* It lacks nerves and does not feel any pain.
* It consumes the largest portion of energy generated by the body.
* It contains 100 billion neurons which is more than the population of humans on Earth.
* It is the fattest organ in humans.
* In women, the neurons multiply at a rate of 250,000 neurons per minute during pregnancy.
PARTS
* The brainstem- controls the heart rate, digestion, breathing, blood pressure and other automatic processes. It connects the brain with the spinal cord.
* Cerebrum- it is covered with a sheet of neural tissue called cerebral cortex which covers other parts such as the hypothalamus, thalamus, and pituitary gland. The cortex is divided into lobes frontal lobe responsible for conscious thought and other mental functions; parietal lobe responsible for integrating sensory information; the te...