Malcolm Is Studying Alone in His Room Late at Night

question 10

Multiple Choice

Malcolm is studying alone in his room late at night when he hears a loud noise downstairs. His heartbeat increases significantly and his breathing becomes shallow. He wonders if a burglar has entered the house and decides to investigate. When he gets downstairs he discovers his cat has knocked over a plant stand. His body begins to relax and return to normal. Which part of his nervous system is responsible for returning Malcolm to a normal state?

• A) spinal cord
• B) somatic nervous system
• C) sympathetic nervous system
• D) parasympathetic nervous system
• E) corpus callosum

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