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Essay / The Importance of the Brain - 759
The brain is an incredible part of our body and it controls everything from bodily coordination, thought processes, and regulation of bodily functions. The brain has enough energy to power a 25-watt light bulb. Now it's power! The cerebrum is composed of the cerebrum (and its lobes), the thalamus, the hypothalamus, the brainstem and the cerebellum. The brain consists of; frontal lobe, parietal lobe, temporal lobe and occipital lobe. It is the largest part of the brain and accumulates 85 percent of the weight. (1) Each part of the brain has its own specific and unique functions. Scientists have studied and are still studying to unravel the mysteries and discover the full potential of the human brain. The frontal lobe is the most anterior part of the brain. The frontal lobe is associated with reasoning, planning, speech, movement, emotions, and problem solving. (2) The frontal lobe is the last to reach full maturity, which is why children and adolescents may have difficulty making good decisions and thinking about subsequent consequences. Studies using MRI tests have proven that most head injuries occur in the frontal region of the brain. (5) The frontal lobe is involved in controlling many aspects of our lives. If the frontal lobe were to be damaged, many consequences would be possible. The patient may lose strength in their arms, creating facial expressions becomes more difficult, have difficulty speaking, personality may change, and IQ scores may drop. Scientists have shown that IQ tests can decline because an injury to the frontal lobe impacts a person's problem-solving abilities. (5) The parietal lobe is the uppermost part of the brain. The parietal lobe receives and analyzes sensory information from touch, temperature and pain. (1) The primary sensory co...... middle of paper ...... brain which consists of the corpus callosum, thalamus and hypothalamus. The corpus callosum is the only connection between the left and right hemispheres of the brain. The two hemispheres communicate using neurons located through the corpus callosum. (1) It allows humans to perform multiple activities at once, such as reading and typing at the same time. The thalamus receives sensory information from the spinal cord and cranial nerves, then transmits the message to the midbrain, which will transmit the motor message to the body. An example would be a hand on a hot stove, the pain neurons instantly fire in the brain telling the hand to remove it from the stove. Finally, the hypothalamus is part of the endocrine and nervous systems. It produces hormones and coordinates with the pons and medulla oblongata to control heart rate, blood pressure, and respiratory rate.. (1)