What is the space between nerve cells where impulses are transmitted called?

• A. Dendrite
• B. Axon
• C. Synapse
• D. Nucleus

Answer: (C)

The synapse is the space between nerve cells where impulses are transmitted. At a chemical synapse, an incoming signal reaches the presynaptic terminal, triggering release of neurotransmitters into the synaptic cleft. These chemicals cross the gap and bind to receptors on the next neuron, opening ion channels and continuing the message. This junction is what allows neurons to communicate with each other and with muscles or glands. Dendrites are parts of a neuron that receive signals, not the space between cells. The axon carries the impulse away from the cell body toward the synapse. The nucleus is the cell’s control center containing genetic material.