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sammy [17]
3 years ago
10

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. Which division of his nervous system was activated?
Biology
1 answer:
olga_2 [115]3 years ago
5 0

Answer:

Sympathetic nervous system

Explanation:

The sympathetic nervous system stimulates the fight-or-flight system which induces secretion of epinephrine and norepinephrine. This lead to an increase in heartbeat and shallow breathing.

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