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Nervous System Unit
Question | Answer |
---|---|
What is the main function of the nervous system? | To carry messages throughout the body |
What is an impulse? | A message sent by nerve cells |
What is a stimulus? | A signal from inside or outside of the body that causes the nervous system to react |
What is a response? | A response is the body's reaction to a stimulus |
What are the three parts of the nervous system? | brain, spinal cord, and neurons |
What is a neuron? | A nerve cell |
What is a synapse? | the space between neurons (or neurons and a cell) |
What parts make up the central nervous system (CNS)? | the brain and spinal cord |
What makes up the peripheral nervous system? | all the nerves that branch off of the central nervous system (CNS) |
What are the three parts of the brain? | brain stem, cerebellum, cerebrum |
What is the largest part of the brain that controls thoughts,voluntary actions, emotions, and interprets information from the five senses? | the cerebrum |
What is the part of the brain located at the bottom that controls balance and coordination? | the cerebellum |
What is the part of the brain located at the base of the brain that connects the brain and the spinal cord? | the brain stem |
What does the brain stem control? | vital and involuntary processes (breathing, heartbeat, digestion) |
What is the bundle of nerves that starts at the back of the brain stem and continues down the center of the back through the vertebrae? It connects the brain to the peripheral nerves. | the spinal cord |
What protects the spinal cord? | the vertebrae |
What is the network of nerves that branch out from the spinal cord? They connect the CNS to the rest of the body. | peripheral nerves |
What is a quick protective response called? | reflex |