Figure 12-2 the Nerve Action Potential

question 42

Multiple Choice

Figure 12-2 The Nerve Action Potential

Use Figure 12-2 to answer the following questions:
-What is occurring in the area between #2 and #3?

• A) An excitatory graded potential is occurring.
• B) Potassium ions are entering the axon and causing depolarization.
• C) Chemically gated sodium channels are open and sodium is diffusing into the axon.
• D) Sodium ions are entering the axon and causing depolarization.
• E) Repolarization of the axon due to sodium ions leaving the axon is occurring.

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Definitions:

Anatomy

The branch of biology concerned with the study of the structure of organisms and their parts.

Single-cell Recording

A neuroscience technique involving the measurement of electrical signals from a single neuron.

Person-machine System

A framework or environment where humans and machines interact for the purpose of enhancing overall system performance.

Cognitive Capabilities

Cognitive Capabilities refer to the range of mental skills that are involved in acquiring knowledge, processing information, and critical thinking.