In a Myelinated Axon, Ions Can Enter and Leave the Axonal

question 7

Multiple Choice

In a myelinated axon, ions can enter and leave the axonal membrane only at

• A) the terminal buttons.
• B) the soma.
• C) the nodes of Ranvier.
• D) the segment of membrane under the Schwann cell wrapping.
• E) every point along the axonal membrane.

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Definitions:

Systolic Pressure

The pressure exerted on the arteries when the heart beats, representing the maximum arterial pressure during contraction of the left ventricle of the heart.

Oxygen Deprivation

A condition resulting from an insufficient supply of oxygen to the body that can cause severe health effects.

Stroke

A medical condition where the blood supply to part of the brain is interrupted or reduced, causing brain cells to die due to lack of oxygen.

Myocardial Infarction

Heart attack.