Final ECG Test

1. The apex of the heart is formed by the _____

• Tip of the left ventricle

• Tip of the right atrium

• Right atrium and right ventricle

• Left atrium and left ventricle

2. The left atrium receives blood from the _____

• Pulmonary veins

• aorta

• pulmonary arteries

• inferior vena cava

3. The right atrium receives venous blood from the head, neck, and thorax via the _____, from the remainder of the body via the _____, and from the heart via the _____.

• coronary sinus; superior vena cava; inferior vena cava

• superior vena cava; coronary sinus; inferior vena cava

• inferior vena cava; superior vena cava; coronary sinus

• superior vena cava; inferior vena cava; coronary sinus

4. The heart is divided into _____ chambers but functions as a _____sided pump.

• two; four

• three; two

• four; two

• four; three

5. Blood flows from the right atrium through the _____ valve into the right ventricle.

• mitral

• aortic

• pulmonic

• tricuspid

6. The base of the heart is found at approximately the level of the _____ rib(s).

• first

• second

• fourth

• fifth and sixth

7. Which of the following are semilunar valves?

• Aortic and pulmonic

• Aortic and tricuspid

• Pulmonic and mitral

• Tricuspid and mitral

8. Blood flows from the left atrium through the _____ valve into the left ventricle.

• mitral

• aortic

• pulmonic

• tricuspid

9. The left main coronary artery divides into the _____ branches.

• marginal and circumflex

• marginal and anterior descending

• anterior and posterior descending

• anterior interventricular artery descending and circumflex

10. The _____ artery supplies the right atrium and ventricle with blood.

• right coronary

• left main coronary

• left circumflex

• left anterior descending