Normal Heart Sounds Are Caused by Which of the Following

question 4

Multiple Choice

Normal heart sounds are caused by which of the following events?

• A)opening and closing of the heart valves
• B)excitation of the SA node
• C)closure of the heart valves
• D)friction of blood against the chamber walls

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Definitions:

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The range of electromagnetic frequencies used in wireless communication, typically ranging from 3 kHz to 300 GHz.

Magnetic Field

A vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.

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Magnetic Resonance Imaging, a medical imaging technique used to visualize internal structures of the body in detail.

Localization Of Function

Specialization of particular brain areas for particular functions.