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NREMT Advanced EMT Practice Test #3

Category - EMT-I/99

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What happens to baroreceptors when there is increased pressure?

They freeze
They stretch
They become resistant
They decrease

Explanation

Answer - B - Increased pressure to baroreceptors causes them to stretch. When they detect reduced flow and pressure, they send messages to the brain to stimulate the sympathetic nervous system. This results in increased heart rate and cardiac output to increase circulation and bronchodilation.

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NREMT Advanced EMT Practice Test #3

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