11.2   Multiple Choice

1) The pointed apex of the heart is oriented toward the:

A) left shoulder

B) right shoulder

C) left hip

D) right hip

E) umbilicus

2) The layer of the heart wall synonymous with the visceral layer of the serous pericardium is:

A) myocardium

B) endocardium

C) epicardium

D) parietal layer of the serous pericardium

E) either endocardium or epicardium

3) Pulmonary circulation involves blood flow to and from the heart and the:

A) body

B) digestive organs

C) skin

D) lungs

E) brain

4) The right AV valve is known as the:

A) aortic semilunar valve

B) tricuspid valve

C) mitral valve

D) pulmonary semilunar valve

E) bicuspid valve

5) Pulmonary veins:

A) transport oxygenated blood to the lungs

B) transport blood rich in carbon dioxide to the lungs

C) transport oxygenated blood to the heart

D) split off the pulmonary trunk

E) return blood to the right atrium of the heart

6) What structure divides the left from the right ventricle:

A) interventricular septum

B) interatrial septum

C) bicuspid valve

D) tricuspid valve

E) chordae tendineae

7) When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the:

A) right ventricle to the right atrium

B) left ventricle to the left atrium

C) left atrium to the right atrium

D) right atrium to the left atrium

E) left ventricle to the right ventricle

8) The tricuspid valve is located between the:

A) right atrium and left atrium

B) right atrium and right ventricle

C) left ventricle and pulmonary artery

D) left ventricle and aorta

E) right ventricle and the pulmonary trunk

9) Deoxygenated blood is returned to the right side of the heart by the:

A) superior and inferior vena cavae

B) pulmonary trunk

C) aorta

D) pulmonary veins

E) pulmonary arteries

10) Which one of the following blood vessels carries oxygenated blood:

A) superior vena cava

B) inferior vena cava

C) coronary sinus

D) pulmonary artery

E) pulmonary vein