A Student Asks the Healthcare Professional to Explain the Function

question 23

Multiple Choice

A student asks the healthcare professional to explain the function of the papillary muscles. What response by the professional is best?

• A)The papillary muscles close the semilunar valves.
• B)These muscles prevent backward expulsion of the atrioventricular valves.
• C)They open the atrioventricular valves.
• D)The papillary muscles open the semilunar valves.

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Definitions:

Clean Air Act Amendments

Changes made to the Clean Air Act, a major environmental law in the U.S. aimed at reducing air pollution and protecting air quality.

NAAQS

The National Ambient Air Quality Standards, which are the limits set by the United States Environmental Protection Agency for pollutants considered harmful to public health and the environment.

Council on Environmental Quality

A division of the Executive Office of the President that advises the U.S. president on environmental policies and initiatives.

Environmental Issues

Problems related to the natural environment due to human activities, including pollution, climate change, and biodiversity loss, requiring sustainable solutions.