As We Grow Older, It Seems That the Amount of Sleep

question 22

Multiple Choice

As we grow older, it seems that the amount of sleep that we require .

• A) decreases
• B) increases
• C) stays the same
• D) decreases until early adulthood and then begins to increase again

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Definitions:

Tricuspid Valve

A valve in the human heart that lies between the right atrium and the right ventricle, regulating blood flow.

Right Atrium

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

Diastole

The phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.

Systole

The stage in the heart's rhythm where the cardiac muscle tightens, forcing blood out of its chambers and into the arterial network.