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Adrenaline accelerates the rate of the heart beat by acting to excite the sinoatrial primary pacemaker of the heart.

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An example of adrenaline action in the nervous system is increased alertness and improved focus during a fight-or-flight response. Adrenaline activates the sympathetic nervous system, leading to enhanced sensory perception and rapid decision-making to help the body respond to a perceived threat.

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10mo ago
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Q: What is an example of the action of adrenaline in the nervous system?
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