The Rising Phase of the Action Potential Is Due to

question 44

Multiple Choice

The rising phase of the action potential is due to

• A) Na⁺ flow into the cell only.
• B) Na⁺ flow out of the cell only.
• C) K⁺ flow out of the cell only.
• D) K⁺ flow into the cell only.
• E) Na⁺ flow out of the cell and K⁺ flow into the cell.

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Definitions:

Brain Stem

The part of the brain connecting the spinal cord with the forebrain and cerebrum, controlling basic life functions like breathing, heart rate, and arousal.

Frontal Lobes

The part of the brain located at the front of each cerebral hemisphere, responsible for voluntary movement, speech, and complex cognitive functions.

Frontal Lobes

The part of the brain located in the frontal region, responsible for higher cognitive functions including decision making, problem-solving, and controlling social behavior.

Hippocampus

A crucial part of the brain's limbic system involved in memory formation and spatial navigation.