CMT Cardiac Anatomy and Physiology 3

Question 1

Which structure separates the right and left ventricles?

Accepted Answer

Interventricular septum

Answer

The interventricular septum is the muscular wall dividing the right and left ventricles, helping maintain separate systemic and pulmonary circulation pressures.

Question 2

The aortic valve opens during which phase of the cardiac cycle?

Accepted Answer

Ventricular ejection (systole)

Answer

The aortic valve opens when left ventricular pressure exceeds aortic pressure during systole, allowing blood to be ejected into the aorta.

Question 3

Which vessel carries oxygenated blood from the lungs back to the heart?

Accepted Answer

Pulmonary veins

Answer

The four pulmonary veins carry oxygenated blood from the lungs to the left atrium, completing the pulmonary circuit.

Question 4

What is the approximate resting heart rate range considered normal for adults?

Accepted Answer

60–100 beats per minute

Answer

A normal resting heart rate for adults is 60–100 beats per minute; below 60 is bradycardia and above 100 is tachycardia.

Question 5

The Purkinje fibers are responsible for which function in the heart?

Accepted Answer

Rapidly conducting impulses throughout the ventricular myocardium

Answer

Purkinje fibers are specialized conduction cells that rapidly distribute electrical impulses through the ventricular walls to coordinate simultaneous contraction.

(CMT) Certified Cardiac Monitor Technician Practice Test

(CMT) Certified Cardiac Monitor Technician Practice Test

CMT Cardiac Anatomy and Physiology 3