Which Statement Most Accurately Describes the Role of the Squid

question 38

Multiple Choice

Which statement most accurately describes the role of the squid in early neurophysiology experiments?

• A) To understand electrical signaling in nerves, squid giant axons must be used because they are the only animal where multiple electrodes can be used for recordings.
• B) The squid giant axon makes a good model system for understanding general electrical signaling principles in all types of nervous systems.
• C) Studies of the squid giant axon revealed that electrical signaling in nerves depends on the movement of fluid along the length of an axon.
• D) Squid giant axons were critical in determining which molecules use ATP in transporting ions across the neuronal membrane.

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