Multiple Choice
Which component of the heart's electrical conduction system is responsible for initiating the heartbeat?
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18. The Heart
Electrical Conduction System of the Heart
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of these statements about the heart is true?
A
The left ventricle pumps blood into the pulmonary circulation.
B
The right atrium receives deoxygenated blood from the body.
C
The heart's pacemaker is located in the left atrium.
D
The mitral valve is located between the right atrium and right ventricle.
Verified step by step guidance1
Begin by identifying the main components of the heart: the atria, ventricles, valves, and the pacemaker.
Understand the flow of blood through the heart: deoxygenated blood enters the right atrium from the body, moves to the right ventricle, and is pumped to the lungs via the pulmonary circulation.
Recognize that the left ventricle pumps oxygenated blood into the systemic circulation, not the pulmonary circulation.
Learn that the heart's pacemaker, the sinoatrial (SA) node, is located in the right atrium, not the left atrium.
Identify the mitral valve as the valve located between the left atrium and left ventricle, not between the right atrium and right ventricle.
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