1. The cluster of cardiac cells in the junction of the right atria and right ventricle is called the ______.

a. Purkinje fibers

b. atrioventricular node (AV)

c. sinoatrial node (SA)

d. none of the above

2. If the septum of the heart had an abnormal opening it is referred to as ______.

a. stenosi

b. septal defects

c. phlebitis

d. a heart murmur

3. When the heart rhythm is abnormal it is referred to as ______.

a. patent ductus arteriosus

b. an arrhythmias

c. an aneurysm

d. an embolism

4. A rapid, irregular succession of chaotic bizarre waves: wide, irregular oscillations of the baseline is called ______.

a. ventricular fibrillation

b. ventricular standstill

c. ventricular tachycardia

d. ventricular rhythm

5. The absence of one or more complete cardiac cycles where the rhythm is interrupted is referred to as ______.

a. sinus arrhythmias

b. sinus arrest

c. sinus block

d. sinus wenckebach

6. Branches of the bundle branches, which transmit the impulse to the walls of the ventricles, causing the ventricles to contract are called ___.

a. bundle of his

b. purkinje fibers

c. left bundle branches

d. right bundle branches

7. A coronary occlusion causing a condition that produces chest pain which may radiate to the left arm, shoulder, jaw or neck due to lack of blood supply to the heart is called ______.

a. angina pectoris

b. arteriolosclerosis

c. atherosclerosis

d. hypertension

8. An obstruction of coronary artery causing death of an area of the myocardium due to blockage of blood supply and oxygen supply is called ______.

a. hypertension

b. myocardial infraction

c. arteriosclerosis

d. primary hypertension

9. Deoxygenated blood enters the right atrium of the ______.

a. vena cava

b. lung

c. heart

d. pharynx

10. When the right atrium contracts it forces blood through the tricuspid valve into the _____ ventricle.

a. left

b. top

c. right

d. inner

11. The right ventricle pumps the used blood to the lungs by the way of the ______ artery.

a. superior

b. vena cava

c. pulmonary

d. atria

12. Referring to the Illustration # 4, identify # 12.

a. pulmonary vein

b. superior vena cava

c. aorta

d. right atrium

[image]

13. Referring to the Illustration # 4, identify # 13.

a. inferior vena cava

b. superior vena cava

c. left pulmonary artery

d. aorta

[image]

14. Referring to the Illustration # 4, identify # 14.

a. left ventricle

b. interventricular septum

c. myocardium

d. apex

[image]

15. Referring to the Illustration # 4, identify # 15.

a. apex

b. tricuspid valve

c. interventricular septum

d. endocardium

[image]

16. Referring to the Illustration # 4, identify # 16.

a. apex

b. endocardium

c. aorta

d. interventricular septum

[image]

17. Referring to the Illustration # 5, identify # 17.

a. superior vena cava

b. aorta

c. right atrium

d. pulmonary vein

[image]

18.  Referring to the Illustration # 5, identify # 18.

a.  inferior vena cava

b.  superior vena cava

c.  right atrium

d.  right ventricle

[image]

b- superior vena cava

 19.  Referring to the Illustration # 5, identify # 19.

a.  aortic valve

b.  mitral valve

c.  semilunar valve

d.  tricuspid valve

[image]

c- semilunar valve

20. Referring to the Illustration # 5, identify # 20.

a. right ventricle

b. right atrium

c. left atrium

d. left ventricle

[image]

21. Referring to the Illustration # 5, identify # 21.

a. right atrium

b. tricuspid valve

c. mitral valve

d. right ventricle

[image]

22. Referring to the Illustration # 5, identify # 22.

a. axillary vein

b. subclavian vein

c. pulmonary vein

d. brachiocephalic vein

[image]

23. Referring to the Illustration # 5, identify # 23.

a. left atrium

b. right atrium

c. left ventricle

d. right ventricle

[image]

24. Referring to the Illustration # 5, identify # 24.

a. tricuspid valve

b. mitral valve

c. semilunar valve

d. atrioventricular valve

[image]

25. Referring to the Illustration # 5, identify # 25.

a. left atrium

b. left ventricle

c. right atrium

d. right ventricle

[image]