Brain Death Occurs When

question 59

Multiple Choice

Brain death occurs when

• A) all electrical activity of the brain has ceased for a specified period of time.
• B) a person remains unconscious for a specified period of time.
• C) only the lower regions of the brain stop functioning.
• D) the body loses the ability to breathe on its own.

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Definitions:

K+ Channels

Potassium channels that allow the selective passage of potassium ions across cell membranes, important for various physiological processes.

Plateau Phase

A stage in some processes where a level of activity or condition remains consistently steady before an eventual change or decline.

Cardiac Cycle

The sequence of events that occur in a complete heartbeat, including contraction and relaxation of the atria and ventricles.

Right Atrium

The right upper chamber of the heart that receives deoxygenated blood from the body and pumps it to the right ventricle.