The Nervous System

Question 1

Use the drop-down menus to complete the sentence.

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✔ the brain; The central nervous system contains , which is the center of the nervous system, and , which coordinates simple reflexes.: the brain; The central nervous system contains , which is the center of the nervous system, and , which coordinates simple reflexes.: the spinal cord

Question 2

✔ the spinal cordglandsthe brainmuscles

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✔ the spinal cord

Question 3

cell body✔ axon terminalsdendrites

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✔ axon terminals

Question 4

Use the drop-down menus to complete the sentences about how neurons distribute information to the body.

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✔ dendrites; Information enters the neuron through the .: dendrites; Information passes through the to the axon.: cell body; Information leaves the neuron through the .: axon terminals

Question 5

Use the drop-down menus to complete the sentences.

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✔ presynaptic cell; The neuron that transmits the impulse is called the , and the cell receiving the impulse is called the .: presynaptic cell; The neuron that transmits the impulse is called the , and the cell receiving the impulse is called the .: postsynaptic cell; When a nerve impulse arrives at the axon terminal of the neuron, it triggers the release of molecules called . These molecules diffuse across the synapse and bind to receptors on the next cell.: neurotransmitters

Question 6

✔ postsynaptic cellpresynaptic cellmotor neuron

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✔ postsynaptic cell

Question 7

✔ neurotransmittersstimulineurons

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✔ neurotransmitters

The Nervous System Answers

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