Question

The synaptic cleft is best characterized by which of the following statements?

A. The synaptic cleft is the space between a single neuron’s dendrites and axon terminals in which intracellular communication occurs through the release of neurotransmitters allowing for signal conduction throughout the central nervous system.

B. The synaptic cleft is the space between the cell body and axon terminals that allows for release of neurotransmitters from the presynaptic neuron for intercellular communication with an adjacent neuron (post synaptic neuron).

C. The synaptic cleft is an area where dendrites and axon terminals are within close proximity, allowing for the release of a neurotransmitter from a presynaptic neuron that can interact with receptors on dendritic cells of a post synaptic neuron, which is the main basis for intercellular communication of neurons.

Answer 1

The answer is ----- A. The synaptic cleft is the space between a single neurons dendrites and axon terminals in which intracellular communication occurs through the release of neurotransmitters allowing for signal conduction through the central nervous system.

This allows thenervous system to connect by transmission of nerve impulses. There are about 500 trillion synapses in the human adult. The synaptic cleft gap is about 20 nm wide. This small volume of the cleft allows the neurotransmitters to raise and lower the concentration rapidly.

Thank you.