CCS Medical Terminology & Anatomy 2

Question 1

The term 'stenosis' in cardiovascular medicine refers to:

Accepted Answer

Narrowing or constriction of a vessel or valve opening

Answer

Stenosis describes an abnormal narrowing of a blood vessel or heart valve opening that restricts flow.

Question 2

Which layer of the heart wall contains the cardiac muscle cells responsible for contraction?

Accepted Answer

Myocardium

Answer

The myocardium is the middle muscular layer of the heart wall composed of cardiac muscle cells (cardiomyocytes).

Question 3

The term 'bradycardia' is defined as a heart rate:

Accepted Answer

Less than 60 beats per minute

Answer

Bradycardia is defined as a resting heart rate below 60 beats per minute.

Question 4

The right coronary artery (RCA) most commonly supplies which structure?

Accepted Answer

Sinoatrial node and right ventricle

Answer

The RCA typically supplies the sinoatrial node, right ventricle, and inferior wall of the left ventricle.

Question 5

What does the term 'ejection fraction' (EF) measure?

Accepted Answer

Percentage of blood ejected from the ventricle with each beat

Answer

Ejection fraction is the percentage of end-diastolic volume pumped out of the ventricle per heartbeat.

(CCS) Certified Cardiovascular Specialist Practice Test