Question

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Explanation:

This covers neuron-based brain communication. Neural signals carry info between neurons, and action potentials follow a specific neuron pathway.

1. The first blank refers to the core structure for brain communication.
2. Brain information travels as electrical/chemical signals.
3. The key signal that moves through neurons is an action potential, which follows the path: dendrites (receive) → axon (travel) → synapse (transmit to others).

Answer:

• Top blank: Neuron
• "In the form of" blank: electrical and chemical signals
• "An" blank: action potential
• "1st received by a neuron's" blank: dendrites
• "Travels down the" blank: axon
• "transmitted through the" blank: synapse