41) A disorder resulting from the obstruction (buildup of fatty : 1200317

41) A disorder resulting from the obstruction (buildup of fatty : 1200317.


41) A disorder resulting from the obstruction (buildup of fatty deposits) of coronary circulation is called ________.

A) valvular heart disease

B) rheumatic heart disease

C) coronary thrombosis

D) coronary artery disease

E) heart block

42) Deoxygenated blood is carried away from the right ventricle by

A) venules.

B) veins.

C) arterioles.

D) capillaries.

E) arteries.

43) The left atrium receives oxygenated blood from the

A) pulmonary trunk.

B) pulmonary veins.

C) aorta.

D) inferior vena cava.

E) pulmonary arteries.

44) In ________, the cusps of the bicuspid valves do not close properly.

A) mitral valve prolapse

B) valvular heart disease

C) ventricular stenosis

D) myocardial infarctions

E) aortic sinuses

45) When the ventricles are relaxed, the ________ are loose and there is no resistance to the flow of blood from atrium to ventricle.

A) auricles

B) chordae tendineae

C) papillary muscles

D) trabeculae carneae

E) aortic sinuses

46) The following is a list of vessels and structures that are associated with the heart.

1. right atrium

2. left atrium

3. right ventricle

4. left ventricle

5. vena cavae

6. aorta

7. pulmonary trunk

8. pulmonary veins

A) 1, 2, 7, 8, 3, 4, 6, 5

B) 1, 7, 3, 8, 2, 4, 6, 5

C) 5, 1, 3, 7, 8, 2, 4, 6

D) 5, 3, 1, 7, 8, 4, 2, 6

E) 5, 1, 3, 8, 7, 2, 4, 6

47) Which statement is correct regarding the heart wall?

A) The endothelium consists of cardiac muscle tissue, blood vessels, and nerves.

B) The myocardium is comprised of a simple squamous epithelium and an underlying layer of areolar tissue.

C) The endocardium is the visceral pericardium.

D) The cardiac muscle tissue forms bands that wrap around the ventricles and spiral into the wall of the atria.

E) The epicardium is a serous membrane that consists of an exposed epithelium and an underlying layer of areolar tissue.

48) The cardiac pacemaker cells are located in which of the following?

A) Purkinje fibers

B) SA node

C) AV node

D) bundle branches

E) bundle of His

49) Depolarization of the atria is represented on an electrocardiogram by the

A) P wave.

B) T wave.

C) S wave.

D) QRS complex.

E) PR complex.

50) ________ is a condition in which the heart rate is slower than normal.

A) Cardiac arrhythmia

B) Bradycardia

C) Tetanus

D) Summation

E) Tachycardia



41) A disorder resulting from the obstruction (buildup of fatty : 1200317

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