Atrial Fibrillation Causes the Atria to

question 18

Multiple Choice

Atrial fibrillation causes the atria to

• A)contract forcefully.
• B)expel the blood backwards.
• C)wiggle instead of contract.
• D)depolarize as a unit.

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Definitions:

Ultrasound

The noninvasive therapeutic or diagnostic use of very high frequency sound waves for examination of internal body structures.

High-Frequency Sound Waves

Sound waves with frequencies higher than those audible to humans, used particularly in medical imaging and diagnostics.

Echoes

The sounds reflected back to the source by an obstruction, helping in determining the location of objects through echolocation or used in diagnostic tools like ultrasounds.

Barium Enema

A diagnostic imaging procedure that involves filling the colon with a barium solution to improve the visibility of the large intestine on X-rays.