Bell Ringer List the parts of our nervous system.

Nervous System

Check your vocab…. brain stem controls involuntary functions central nervous system made of the brain and spinal cord cerebellum coordinates voluntary muscle movement and regulates balance and posture cerebrum controls memory, language, and thought nervous system gathers, processes, and responds to information neuron basic functioning unit of the nervous system peripheral nervous system sensory and motor neurons that transmit information between the central nervous system and the rest of the body physical relating to material things reflex automatic movement in response to a stimulus spinal cord tube like structure of neurons stimulus change in an organism’s environment that causes a response synapse gap between two neurons

Nervous System Tasting,_______, seeing, hearing, thinking,___________, breathing, heart beating, moving, running, sleeping,__________, singing, remembering, feeling pain or pleasure, painting, writing...you couldn't do any of these things without your central nervous system! smelling Dreaming laughing

What is the nervous system? Made up of your________, your spinal_______, and ________that thread throughout your body. It's the _________center for your entire body. Your brain uses information it receives from your nerves to coordinate all of your actions and reactions. Without it, you couldn't exist! brain cord nerves control

What are nerves? They're the _____threads of nerve cells, called __________that run throughout your body. they carry messages back and forth just the way that telephone wires do. __________nerves ______messages ____the brain and generally connect to the brain through the spinal cord inside your backbone. ________nerves carry messages ______the brain to all the muscles and glands in your body. thin neurons send Sensory to Motor from

So how do they pass along messages? __________are thin. Some are very small, and some can be three feet long! All are shaped somewhat like flat ________which have long fingers. The fingers of one neuron almost reach to the next neuron, to ______on information. Neurons stars pass

Remind you of anything? How about a cool relay of dominoes in which one standing domino falls and trips the next and the next and the next.

During a football game, the coaches stand on the periphery of the field. prefix peri- means "around or outside." What does periphery mean in the statement on the board? The coaches stand outside the boundary of the field. What do you think the peripheral nervous system is? it is part of the nervous system outside of something. It is the part of the nervous system that is outside the central nervous system.

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Clicker Your Nervous System consists of all of the following, except….. A. Brain B. Heart C. Spinal Cord D. Nerves

Discussion questions What are some of the tasks performed by the nervous system? The nervous system gathers information, reacts to changes in the environment, and makes adjustments that maintain homeostasis—the regulation of their internal environment.

Discussion questions What are the two parts of the central nervous system? the brain and the spinal cord

Refer to Book How do the PNS and the CNS interact? The PNS is made of neurons that transmit information between the CNS and the rest of the body.

Discussion questions How does a reflex work? Responding nerve signals are sent directly from the spinal cord to the appropriate muscles. Give an example of how the nervous system works with another body system to maintain homeostasis? One example is shivering when cold. The nervous system senses changes in temperature around the body and signals the muscular system to contract. The shivering action creates movement to warm up the body.

Challenge…. Describe the path a message would travel if you touch a hot plate