CSC CSC Cardiac Anatomy & Physiology

Question 1

Which valve separates the left atrium from the left ventricle?

Accepted Answer

Mitral valve

Answer

The mitral valve (bicuspid valve) is located between the left atrium and left ventricle.

Question 2

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

Accepted Answer

Increased stroke volume

Answer

The Frank-Starling law states that greater myocardial stretch from increased preload results in a stronger contraction and higher stroke volume.

Question 3

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

Accepted Answer

Left anterior descending artery

Answer

The left anterior descending (LAD) artery supplies the anterior wall and apex of the left ventricle.

Question 4

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

Accepted Answer

55–70%

Answer

A normal LVEF is 55–70%, indicating the percentage of blood ejected per contraction.

Question 5

The chordae tendineae attach the atrioventricular valve leaflets to the:

Accepted Answer

Papillary muscles

Answer

Chordae tendineae are fibrous cords that connect AV valve leaflets to papillary muscles, preventing valve prolapse during systole.

CSC - Cardiac Subspecialty Certification Exam Practice Test