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HW: Mint Ice Cream reading and questions. Current Events # 25 – 28 on Friday. Do Now: 1/12/16 1. Take out your HW 2. Complete the Concept Map handout – side 1 only! How the Nervous System Works HW Axon Tip (Terminal) Synapse Dendrite Axon response nerve nerve impulse stimulus neuron (or nerve cell) a. Neurons ______________ consists of three types Sensory b. ______________ Interneurons Motor c. ______________ send impulses to send impulses to Motor d. ______________ Muscles e. ______________ Neurons send impulses from Environment Neurons Neurons or glands F A E D B C Any change or signal in the environment Reaction to a stimulus Automatic response without conscious control Removes unneeded substances Tearing up The brain/spinal cord A receiver of messages A pathway of responses Sneezing/tearing Letting go Blinking Jump/Scream Nervous System Notes A. The Central Nervous System (CNS) •Main control center of the nervous system •Made up of the Brain and Spinal cord Label the parts of the nervous system Cerebrum Cerebellum Medulla Spinal cord Spinal nerves Cerebrum Voluntary functions Cerebellum Balance and coordination Medulla/brain stem Involuntary (Automatic) functions Spinal cord Passageway for CNS Spinal nerves Bundles of neurons/nerve fibers B. Parts of the Brain and Some Functions and coordination Cerebrum: Voluntary activities such as… Cerebellum: Muscular activities such as… Medulla: Involuntary activities such as… C. Left and right sides of the brain control the opposite parts of the body! D. Spinal Cord • Link between the brain and the nerves in your body. • Protected by watery fluid and bones (the vertebral column) E. The Peripheral Nervous System (PNS) Made up of the nerves and connects to the CNS (Central Nervous System) Cerebrum Central Cerebellum Medulla Peripheral Spinal Cord Spinal Nerves B A D E C The Story of Phineas Gage 4 min. link: http://www.youtube.com/watc h?v=FrULrWRlGBA Original Link 5 min.: Alan Alda http://www.youtube.com/watc h?v=9QXI_BxlY7M The Brain explains…..THE BRAIN!! 1 min. link. http://www.youtube.com/watch?v=snO68aJTOpM Closure: List at least 3 functions that your brain controls (Think about what your body does each day). Two MRI scans of the brain