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12 terms

A&P Quiz 3

STUDY
PLAY
The left side of the heart pumps the same volume of blood as the right.
Answer:
True Correct False
True
The pacemaker of the heart is the:
Choose one answer.
a. AV node Incorrect
b. Bundle of His Incorrect
c. the bundle branches Incorrect
d. Purkinje fibers Incorrect
e. SA node
SA node
Calculate stroke volume, given the following: EDV = 120 ml/beat and ESV = 50 ml/beat.
Choose one answer.
a. 170 ml/beat Incorrect
b. 70 ml/beat Correct
c. 50 ml/beat
70 ml/beat
The tricuspid valve is closed _____________.
Choose one answer.
a. while the ventricle is in diastole Incorrect
b. when the ventricle is in systole Correct
c. by the movement of blood from atrium to ventricle Incorrect
d. while the atrium is contracting
when the ventricle is in systole
When the mitral valve closes, it prevents the backflow of blood from the:
Choose one answer.
a. left ventricle into the aorta. Incorrect
b. right ventricle into the pulmonary trunk. Incorrect
c. left ventricle into the left atrium. Correct
d. left atrium into the left ventricle
left ventricle into the left atrium.
The inferior vena cava brings blood from the lower regions of the body and empties into the:
Choose one answer.
a. right atrium Correct
b. right ventricle Incorrect
c. left atrium Incorrect
d. left ventricle Incorrect
e. aorta
right atrium
Blood enters which of these vessels during ventricular systole?
Choose one answer.
a. aorta Incorrect
b. pulmonary arteries Incorrect
c. pulmonary veins Incorrect
d. aorta and pulmonary trunk
aorta and pulmonary trunk
Isovolumetric contraction _________________.
Choose one answer.
a. occurs immediately after the aortic and pulmonary valves close Incorrect
b. refers to the short period during ventricular systole when the ventricles are completely closed chambers Correct
c. occurs only in people with heart valve defects Incorrect
d. occurs while the AV valves are open
refers to the short period during ventricular systole when the ventricles are completely closed chambers
During pulmonary circulation blood leaves the:
Choose one answer.
a. right atrium and goes directly to the lungs Incorrect
b. right ventricle and goes directly to the aorta Incorrect
c. left ventricle and moves to the lungs Incorrect
d. right ventricle and moves to the lungs Correct
e. right atrium and goes directly to the left vent
right ventricle and moves to the lungs
Match the following:
Ventricular depolarization

QRS complex
T wave
P wave
QRS complex
Match the following:
Ventricular repolarization

QRS complex
T wave
P wave
T wave
Match the following:
Artial depolarization

QRS complex
T wave
P wave
P wave