NBE Cardiac Anatomy & Physiology

Question 1

Which cardiac valve separates the left atrium from the left ventricle?

Accepted Answer

Mitral valve

Answer

Tricuspid valve

Answer

Pulmonic valve

Answer

Aortic valve

Question 2

The normal left ventricular ejection fraction (LVEF) range is approximately:

Accepted Answer

55–70%

Answer

35–45%

Answer

45–55%

Answer

70–85%

Question 3

Which structure separates the right and left atria?

Accepted Answer

Interatrial septum

Answer

Interventricular septum

Answer

Moderator band

Answer

Crista terminalis

Question 4

The papillary muscles of the left ventricle attach to the mitral valve leaflets via which structures?

Accepted Answer

Chordae tendineae

Answer

Purkinje fibers

Answer

Trabeculae carneae

Answer

Annular ligaments

Question 5

Which coronary artery most commonly supplies the sinoatrial (SA) node?

Accepted Answer

Right coronary artery

Answer

Left anterior descending artery

Answer

Left circumflex artery

Answer

Posterior descending artery

Question 6

In echocardiography, the term 'end-diastole' refers to the phase when:

Accepted Answer

The ventricle is maximally filled just before contraction

Answer

The ventricle reaches its smallest volume

Answer

The aortic valve opens

Answer

The mitral valve opens

Question 7

Which layer of the heart wall is responsible for the contractile function of the myocardium?

Accepted Answer

Myocardium

Answer

Epicardium

Answer

Endocardium

Answer

Pericardium