The peripheral nervous system (PNS) is composed of spinal nerves that branch from the spinal cord and cranial nerves that branch from the brain.
The central nervous system (CNS) is composed of the brain and spinal cord.
The brain controls our thoughts, memory and speech, movement of the arms and legs, and the function of many organs within our body. It assembles the messages in a way that has meaning for us, and can store that information in our memory. The brain receives information through our five senses: sight, smell, touch, taste, and hearing - often many at one time. Protected within the skull, the brain is composed of the cerebrum, cerebellum, and brainstem. Intelligence, creativity, emotion, and memory are a few of the many things governed by the brain. The brain is an amazing three-pound organ that controls all functions of the body, interprets information from the outside world, and embodies the essence of the mind and soul.
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