If someone's heart beats at 70 beats per minute and with each contraction of the ventricle 70 mL of blood is ejected from the ventricles, what is the person's stroke volume?
A) 1400
B) 4900
C) 70
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Question 2) Which of the following would contain deoxygenated blood?
A) Left ventricle
B) Aorta
C) Pulmonary artery
D) Pulmonary vein
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Question 3) The bicuspid, or mitral, valve is located _____.
A) between the left atrium and the left ventricle
B) between the right atrium and right ventricle
C) at the orifice of the pulmonary artery
D) at the orifice of the aorta
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Question 4) The blood vessels that bring deoxygenated blood back to the heart are called the _____.
A) aorta
B) pulmonary arteries
C) pulmonary veins
D) vena cava
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Question 5) All, health care workers must have current certification in which of the following?
A) CPR (cardiopulmonary resuscitation)
B) ALS (advanced life support)
C) PALS (pediatric advanced life support)
D) EKG (electrocardiogram) interpretation
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Question 6) Which of the following best describes the location of the apex of the heart?
A) It is located over the atria.
B) It lies on the diaphragm and points to the left of the body.
C) It is located in the area where the aorta leaves the heart.
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Question 7) Cardiac muscle tissue, or _____, makes up the major portion of the heart.
A) myocardium
B) pericardium
C) endocardium
D) septum
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Question 8) The _____ sends out an electrical impulse that begins and regulates the heartbeat.
A) AV node
B) SA node
C) Purkinje fibers
D) AV bundle
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Question 9) A rapid heartbeat of more than 100 beats per minute is most accurately called _____.
A) arrhythmia
B) bradycardia
C) tachycardia
D) fibrillation
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Question 10) Severe chest pain that occurs when the heart does not receive enough oxygen is called _____.
A) pericarditis
B) myocardial infarction
C) atherosclerosis
D) angina pectoris
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