NBE Cardiac Anatomy & Physiology 2

Question 1

The aortic valve normally has how many leaflets (cusps)?

Accepted Answer

Three

Answer

One

Answer

Two

Answer

Four

Question 2

Which cardiac chamber has the thickest myocardial wall under normal physiological conditions?

Accepted Answer

Left ventricle

Answer

Right atrium

Answer

Left atrium

Answer

Right ventricle

Question 3

The fossa ovalis is a remnant of which fetal structure?

Accepted Answer

Foramen ovale

Answer

Ductus arteriosus

Answer

Ductus venosus

Answer

Umbilical vein

Question 4

Preload in the heart is best defined as:

Accepted Answer

The ventricular wall tension at the end of diastole

Answer

The resistance the ventricle must overcome to eject blood

Answer

The contractile force of the myocardium

Answer

The heart rate times stroke volume

Question 5

The coronary sinus drains deoxygenated blood from the myocardium into which cardiac chamber?

Accepted Answer

Right atrium

Answer

Left atrium

Answer

Left ventricle

Answer

Right ventricle

Question 6

Which wall motion segment supplied by the left anterior descending (LAD) artery is best visualized in the apical 4-chamber view?

Accepted Answer

Apical segment

Answer

Basal inferior wall

Answer

Mid anteroseptal wall

Answer

Basal lateral wall

Question 7

Stroke volume is calculated as:

Accepted Answer

EDV − ESV

Answer

EDV × EF

Answer

ESV + EF

Answer

HR × EDV