What is the small gap between a presynaptic cell and postsynaptic cell called?

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Multiple Choice

What is the small gap between a presynaptic cell and postsynaptic cell called?

Explanation:
At a chemical synapse, the signal crosses through a tiny space between the sending and receiving cells. That space is the synaptic cleft, the gap where neurotransmitters diffuse from the presynaptic terminal to receptors on the postsynaptic membrane. This is what allows communication from one neuron to the next. The other terms refer to different structures: cytoplasm is the fluid inside a cell, dendrites are the branched extensions that receive input, and the myelin sheath insulates certain axons to speed conduction. So the small gap between the two cells is the cleft.

At a chemical synapse, the signal crosses through a tiny space between the sending and receiving cells. That space is the synaptic cleft, the gap where neurotransmitters diffuse from the presynaptic terminal to receptors on the postsynaptic membrane. This is what allows communication from one neuron to the next.

The other terms refer to different structures: cytoplasm is the fluid inside a cell, dendrites are the branched extensions that receive input, and the myelin sheath insulates certain axons to speed conduction. So the small gap between the two cells is the cleft.

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