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The Nervous System Today’s objectives… Identify and discuss the two main parts of the nervous system. Explain how the nervous system functions as the central control system of the body. Identify factors that may lead to disorders of the nervous system. The Nervous System The Body’s Control Center The nervous system carries messages to and from the brain. It controls senses, thoughts, movements and bodily functions. Neurons The cells that make up the nervous system. Send and receive information in the form of electrical charges. There are 3 types of neurons Sensory, Interneurons and Motor Nervous System Parts Central Nervous System or CNS consists of the brain and the spinal cord. Brain is the command center- controls most body functions. Just the Brain Facts! Spinal Cord is a long bundle of neurons that relays messages. Peripheral Nervous System (PNS) Nerves that connect CNS to all parts of the body. The Nervous System Parts Continued… A spinal cord injury occurs every 49 seconds in the US. Injuries Alcohol Use Disorders Problems of the Nervous System How can we protect our nervous system? Drug Abuse Infections Abuse of alcohol and drugs can cause permanent damage to your nervous system. How could your life be affected if you suffered permanent damage to the system that controls your thought processes, your movement, your heartbeat and your digestion? Give three specific reasons to support your answer. The Nervous System and it’s tricks The following slides contain a series of optical illusions that will attempt to trick or stump your senses! Follow the directions Miss Allison gives you to get the FULL effect! What do you see here? A beautiful woman or an elderly woman? Greatest Optical Illusion Alive! http://slumz.boxden.com/f605/sep-17-experiencegreatest-optical-illusions-all-time-1421978/