The Movement of an Action Potential Along a Neuron Is

question 37

Multiple Choice

The movement of an action potential along a neuron is most like ________.

• A)the ripples created by dropping a pebble into a pond, gradually decreasing in size as the waves spread apart
• B)a crowd at a sporting event doing the wave around a stadium
• C)a radio tower emitting a signal that reaches only a small region
• D)the sound of your voice spreading out as you yell loudly to your friend while at a park

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Definitions:

Meninges

Protective membranes that cover the brain and spinal cord, comprising the dura mater, arachnoid mater, and pia mater.

Spinal Cord

In vertebrates, the nerve cord that is continuous with the base of the brain and housed within the vertebral column.

Medulla Oblongata

In vertebrates, part of the brain stem that is continuous with the spinal cord; controls heartbeat, blood pressure, breathing, and other vital functions.

Respiration

The biochemical process in living organisms involving the intake of oxygen and the release of carbon dioxide, essential for energy production.