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What is true of synapses?
Which of these answers is the most true?
A. synaptic potentials are an all or non phenomenon
B. most neurons have a direct physical connection with each other a a synapse
C. they are the only place information can be processed in the nervous system
D.when a nerve impulse reaches a synapse, Ca++ diffuses into the post-synaptic neuron and causes a neurotransmitter to be releases from vesicles through exocytosis.
1 Answer
- 10 years agoFavorite Answer
A is correct. Once a nerve impulse is triggered, there's no way it can be stopped.
B - neurons have no physical contact with each other; there is a gap between them called the neurotic cleft, which is what neurotransmitters diffuse across.
C - information isn't processed in a synapse; it's processed in the brain.
D - Ca+ diffuses into the pre-synaptic neuron, not the post-synaptic.
