Here's why:
* Axon: The axon is a long, slender projection that carries electrical signals (action potentials) away from the neuron's cell body.
* Axon Terminal: The axon terminal is the very end of the axon. It's a specialized structure that houses tiny sacs called synaptic vesicles. These vesicles contain neurotransmitters, which are the chemical messengers that neurons use to communicate with each other.
* Synapse: The axon terminal sits very close to another neuron's dendrite, forming a junction called a synapse.
* Neurotransmitter Release: When an action potential reaches the axon terminal, it triggers the release of neurotransmitters from the synaptic vesicles. These neurotransmitters then diffuse across the synaptic gap and bind to receptors on the receiving neuron's dendrite, triggering a new signal.
So, in short, the axon terminal is the key player in sending chemical messages between neurons.
