One Possible Disadvantage to a Nerve Net Is That It

question 50

Multiple Choice

One possible disadvantage to a nerve net is that it might conduct impulses in two directions from the point of the stimulus. Most of the synapses in vertebrates conduct information in only one direction

• A) as a result of the nodes of Ranvier.
• B) as a result of voltage-gated sodium channels found only in the vertebrate system.
• C) because vertebrate nerve cells have dendrites.
• D) because only the postsynaptic cells can bind and respond to neurotransmitters.
• E) because the sodium-potassium pump moves ions in one direction.

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