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.

Question

Quizplus · Accepted Answer

Synapses in vertebrates are typically unidirectional, meaning that information flows in one direction from the presynaptic neuron to the postsynaptic neuron. This is due to the fact that neurotransmitter receptors are located on the postsynaptic cell, and only the postsynaptic cell can bind and respond to the neurotransmitters released by the presynaptic cell.

Most of the Synapses in Vertebrates Conduct Information in Only