Papers by Sohanur Hossain
The central nervous system (CNS) is comprised of the brain and spinal cord. The CNS receives sens... more The central nervous system (CNS) is comprised of the brain and spinal cord. The CNS receives sensory information from the nervous system and controls the body's responses. The CNS is differentiated from the peripheral nervous system, which involves all of the nerves outside of the brain and spinal cord that carry messages to the CNS. The central nervous system plays a primary role in receiving information from various areas of the body and then coordinating this activity to produce the body's responses. 1 Central Nervous System Structure The CNS has three main components: the brain, the spinal cord, and the neurons (or nerve cells). The Brain The brain controls many of the body's functions including sensation, thought, movement, awareness, and memory. The surface of the brain is known as the cerebral cortex. The surface of the cortex appears bumpy thanks to the grooves and folds of the tissue. Each groove is known as a sulcus, while each bump is known as a gyrus. The largest part of the brain is known as the cerebrum and is responsible for things such as memory, speech, voluntary behaviors, and thought. 1 The cerebrum is divided into two hemispheres, a right hemisphere, and a left hemisphere. The brain's right hemisphere controls movements on the body's left side, while the left hemisphere controls movements on the body's right side. While some functions do tend to be lateralized, researchers have found that there are not "left brained" or "right brained" thinkers, as the old myth implies. 2 Both sides of the brain work together to produce various functions.
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Papers by Sohanur Hossain