What is the knoblike swelling at the end of an axon called that releases messages to other neurons?

What is the knoblike swelling at the end of an axon called that releases messages to other neurons?

• A. Terminal Button
• B. Dendrite
• C. Soma
• D. Axon

Answer: (A)

The structure at the end of an axon that releases messages to other neurons is called the terminal button. When an action potential reaches this knoblike end, tiny vesicles fuse with the membrane and release neurotransmitters into the synaptic cleft, allowing the signal to influence the next neuron. Dendrites are the receiving branches of a neuron, not the release site. The soma is the cell body that houses the nucleus and maintains the cell’s metabolic functions. The axon is the long projection that carries electrical signals away from the cell body toward the terminal buttons.

The structure at the end of an axon that releases messages to other neurons is called the terminal button. When an action potential reaches this knoblike end, tiny vesicles fuse with the membrane and release neurotransmitters into the synaptic cleft, allowing the signal to influence the next neuron. Dendrites are the receiving branches of a neuron, not the release site. The soma is the cell body that houses the nucleus and maintains the cell’s metabolic functions. The axon is the long projection that carries electrical signals away from the cell body toward the terminal buttons.