Question

the long, slim, tube-like extension on every neuron that carries messages to other neurons is referred to as the
o axon
o dendrite
o terminal button
o myelin sheath

Explanation:

To solve this, we analyze each option:

• Axon: A long, slim, tube - like extension of a neuron that transmits messages (action potentials) to other neurons, muscles, or glands.
• Dendrite: Branch - like structures that receive messages from other neurons, not the long - range transmitter.
• Terminal button: The end part of the axon's branches that releases neurotransmitters, not the main tube - like extension.
• Myelin sheath: A fatty layer that insulates some axons to speed up signal transmission, not the extension itself.

Answer:

A. axon