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Nervous system Answer Key

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Category 1
#1 What a is the definition of the nervous system? Nerve cells and fibers that carry and send messages to and from the brain to parts of the body
#2 How many main functions are there? 3
#3 What do sensory nerves do? Gather information from inside the body the outside environment
#4 How many parts is he structure divided into? 2
#5 What is the central nervous system? Consisted of the brain and spinal cord
Category 2
#1 What is the peripheral system? Part connects the central nervous system to the rest of the body
#2 What is the job of the cerebrum? Largest part of the brain that gives you your five senses
#3 What is the job of the cerebral cortex? In control of learning, reasoning, language and memory
#4 What is the job of the cerebellum? In charge of voluntary muscles,balance and muscle tone
#5 What is the job of the medulla? Controls heart rate, breathing, swallowing, coughing and vomiting.
Category 3
#1 What is the definition of a neuron? Special cell that makes other cells quickly send messages to the body
#2 The autonomic nerves are in charge of what? Controls heart rate, smooth muscles, and "fight or flight" system
#3 The somatic nerves are in charge of what? Allows voluntary control to the skelttal muscles
#4 What is the definition of involuntary muscles? Muscles not under control
#5 What is the definition of voluntary muscles? Action in which it is controlled by an individual
Category 4
#1 What nerves causes a fast heart beat when your nervous or scared Sympathetic and parasympathetic
#2 What are nerves made of? Axons
#3 How long does it take to revive a message? Range between 200 miles per hour
#4 What are th colors thta me up the brains matter? Grey and white
#5 The hemisphere of the brain is divided into how many lobes? 4
Category 5
#1 What are the names of the lobes? Occipital, parietal, temporal, and frontal
#2 What are the two main parts of the nervous system? The brain and spinal cord
#3 How many types of neuron are? 3
#4 What are the types of neurons Multipolar, bipolar and unipolar
#5 Why are nerves important? Nerves allow you to sense what goes on around and within you
Final Question