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Which of the following is false?

a. Pressure within the atria is known as intratrial pressure.
b. During most of ventricular systole the semilunar valves are open.
c. Diastole is another name for contraction of the heart muscle.
d. Left sided congestive heart failure often leads to pulmonary edema.
e. Congestive heart failure may be caused by coronary artery disease, hypertension, myocardial infarction, or valve disorders

User Grundic
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Final answer:

The false statement is that 'Diastole is another name for contraction of the heart muscle (option C).' Diastole is the relaxation phase, and the correct term for the contraction phase is systole.

Step-by-step explanation:

The false statement in the provided options is: c. Diastole is another name for contraction of the heart muscle. In fact, diastole refers to the relaxation phase of the heart cycle when the heart muscle is relaxed and the chambers of the heart fill with blood. Specifically, during atrial diastole, the ventricles contract, which is a part of ventricular systole. The term you are looking for when discussing the contraction of the heart muscle is systole.

Moreover, left-sided congestive heart failure leading to pulmonary edema is a result of increased pressure in the left atrium and pulmonary veins, initiating fluid accumulation in the lungs. Congestive heart failure can indeed be caused by various factors including coronary artery disease, hypertension, myocardial infarction, and valve disorders. These are some of the numerous potential causes that may impair the heart's functionality.

User Daniel Yankowsky
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