CSC CSC Cardiac Anatomy & Physiology

Question 1

Which valve separates the left atrium from the left ventricle?

Accepted Answer

Mitral valve

Answer

Aortic valve

Answer

Pulmonic valve

Answer

Tricuspid valve

Question 2

The Frank-Starling mechanism states that increased ventricular filling leads to:

Accepted Answer

Increased stroke volume

Answer

Decreased stroke volume

Answer

No change in cardiac output

Answer

Decreased heart rate

Question 3

Which coronary artery primarily supplies the anterior wall of the left ventricle?

Accepted Answer

Left anterior descending artery

Answer

Right coronary artery

Answer

Left circumflex artery

Answer

Posterior descending artery

Question 4

Normal left ventricular ejection fraction (LVEF) range is approximately:

Accepted Answer

55–70%

Answer

30–45%

Answer

45–55%

Answer

70–85%

Question 5

The chordae tendineae attach the atrioventricular valve leaflets to the:

Accepted Answer

Papillary muscles

Answer

Annulus fibrosus

Answer

Interventricular septum

Answer

Trabeculae carneae

Question 6

During systole, what happens to the mitral valve?

Accepted Answer

It closes to prevent regurgitation into the left atrium

Answer

It opens to allow blood into the left ventricle

Answer

It opens to allow blood into the aorta

Answer

It closes to prevent pulmonary hypertension