Regarding Its Role as a Neurotransmitter in the CNS,norepinephrine

question 56

Multiple Choice

Regarding its role as a neurotransmitter in the CNS,norepinephrine

• A)is secreted by brainstem neurons in response to sensory stimulation.
• B)amplifies weak sensory signals and dampens strong ones so that more information can reach conscious levels.
• C)is important for maintaining directed attention.
• D)is completely absent from the CNS,it is only used in the PNS.
• E)is only important for processing visual stimuli.

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