A neurotransmitter transmits a signal across a _____ from one neuron to another target neuron.
Answer
synapse
Explanation
The missing term is **synapse**, the junction across which the neurotransmitter transmits a signal in the definition provided. Remembering this term helps distinguish neurotransmission from the broader endocrine transport of hormones through blood.\n\n**Key takeaway:** Synapse is the junction named in the neurotransmitter definition.\n\n**Glossary:** **Synapse**: The junction across which a neuron transmits a signal to a target cell.