The physical space (labeled B in the diagram)between the presynaptic and postsynaptic neurons is called the _____ and the chemical (labeled C in the diagram)that is released to signal across this space is called a _____.
A)synaptic vesicle; neurotransmitter
B)synaptic end bulb; neurotransmitter
C)synaptic cleft; synaptic vesicle
D)synapse; neurotransmitter
E)synaptic cleft; neurotransmitter

Question

The physical space (labeled B in the diagram)between the presynaptic and postsynaptic neurons is called the _____ and the chemical (labeled C in the diagram)that is released to signal across this space is called a _____. 
A)synaptic vesicle; neurotransmitter 
B)synaptic end bulb; neurotransmitter 
C)synaptic cleft; synaptic vesicle 
D)synapse; neurotransmitter 
E)synaptic cleft; neurotransmitter

Quizplus · Accepted Answer

The physical space between the presynaptic and postsynaptic neurons is called the synaptic cleft, and the chemical that is released to signal across this space is called a neurotransmitter. Therefore, the best answer choice is E, "synaptic cleft; neurotransmitter." Choices A, B, C, and D all contain some inaccuracies in their labeling or description of the components involved in synaptic transmission.

The Physical Space (Labeled B in the Diagram)between the Presynaptic