Papillary Muscles

question 31

Multiple Choice

Papillary muscles:

• A) contract when the ventricles relax
• B) prevent the valves from closing during ventricular diastole
• C) are attached to the semi lunar valves via the chordae tendineae
• D) prevent the backflow of blood into the atria during ventricular systole
• E) prevent the backflow of blood into the ventricles from the aorta

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Definitions:

National Industrial Recovery Act

A key piece of legislation passed in 1933 as part of U.S. President Franklin D. Roosevelt's New Deal, aiming to stimulate economic recovery during the Great Depression by regulating industry and promoting fair labor standards.

Construction Industry

Refers to the sector of the economy that focuses on the building and assembling of infrastructure, buildings, and other physical structures.

Wagner Act

The Wagner Act, also known as the National Labor Relations Act of 1935, secured the right of workers to form unions and engage in collective bargaining with employers.