Answer:
The receptor.
Step-by-step explanation:
Neurotransmitters may be defined as the chemicals that helps in the transmission of nerve impulse. These neurotransmitters are endogenous in the nature.
Neurotransmitters must binds to the its receptor known as neural receptor. The receptor must bounds its ligand ( neurotransmitter ) from the transmission of signals. These receptors are specific to its neurotransmitter chemical and carry the transmission of messages.
Thus, the correct answer is neural receptor.