Chapter 36 Cardiovascular System

Chapter 36  Cardiovascular System

Complete Chapter Questions And Answers
 

Sample Questions

MULTIPLE CHOICE

1. The endothelium lining of the heart chambers and valves is called the:
a.
endocardium
c.
myocardium
b.
epicardium
d.
pericardium

ANS: A
The endocardium is made of endothelium cells that line the inside of the heart and valves and is continuous with the endothelial lining of the vessels of the circulatory system.

PTS: 1 DIF: Comprehension REF: White (2010)

2. The double-walled sac that surrounds the heart is called the:
a.
endocardium
c.
myocardium
b.
epicardium
d.
pericardium

ANS: D
The pericardium consists of two layers: the outer layer (parietal) surrounds the heart and the inner layer (visceral) lines the great vessels.

PTS: 1 DIF: Comprehension REF: White (2010)

3. Depolarization of which heart chamber pumps blood into the aorta and out to the entire body?
a.
left atrium
c.
right atrium
b.
left ventricle
d.
right ventricle

ANS: B
Contraction of the left ventricle pumps blood into the aorta and out to the entire body.

PTS: 1 DIF: Comprehension REF: White (2010)

4. Blood leaves the heart through which of these structures?
a.
arteries
c.
veins
b.
capillaries
d.
vesicles

ANS: A
Arteries carry oxygenated blood from the heart to the entire body.

PTS: 1 DIF: Knowledge REF: White (2010)

5. Which of these terms refers to the volume of blood pumped by the ventricle with each contraction?
a.
cardiac output
c.
pulmonary volume
b.
polar output
d.
stroke volume

ANS: D
The volume of blood pumped by the ventricle with each contraction or systole is called the stroke volume (SV). The amount ejected in 1 minute is the cardiac output.

PTS: 1 DIF: Comprehension REF: White (2010)