PATHOLOGY MCQ
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The most immediate effect of adrenaline and noradrenaline secretion is
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arousal.
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immobility.
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relaxation.
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energy conservation.
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Explanation:
Detailed explanation-1: -What does norepinephrine do in the body? As a neurotransmitter in your brain and spinal cord, norepinephrine: Increases alertness, arousal and attention. Constricts blood vessels, which helps maintain blood pressure in times of stress.
Detailed explanation-2: -In the brain, norepinephrine increases arousal and alertness, promotes vigilance, enhances formation and retrieval of memory, and focuses attention. It also increases restlessness and anxiety.
Detailed explanation-3: -Adrenaline is a hormone released from the adrenal glands and its major action, together with noradrenaline, is to prepare the body for ‘fight or flight’.
There is 1 question to complete.