Which Valve Prevents the Backflow of Blood into the Left

question 71

Multiple Choice

Which valve prevents the backflow of blood into the left ventricle when the ventricles relax?

• A) Left atrioventricular valve
• B) Aortic semilunar valve
• C) Right atrioventricular valve
• D) Pulmonary semilunar valve
• E) None of the choices is correct.

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Definitions:

Depression

A mental health disorder characterized by persistently depressed mood or loss of interest in activities, causing significant impairment in daily life.

Optimism

A mental attitude reflecting a belief or hope that the outcome of some specific endeavor, or outcomes in general, will be positive, favorable, and desirable.

Longitudinal Study

A research design that involves repeated observations of the same variables (e.g., people) over short or long periods of time to detect patterns, causes, and effects.

Conscientiousness

A personality trait characterized by being thorough, careful, or vigilant; implying a desire to do a task well.