#1
Which of the following is NOT a component of the cardiovascular system?
Kidneys
ExplanationKidneys are part of the urinary system, not the cardiovascular system.
#2
What is the average resting heart rate for adults?
60-100 beats per minute
ExplanationThe average resting heart rate for adults typically falls between 60-100 beats per minute.
#3
Which blood vessel carries oxygenated blood away from the heart?
Artery
ExplanationArteries carry oxygenated blood away from the heart to the body.
#4
What is the term for the relaxation phase of the cardiac cycle?
Diastole
ExplanationDiastole is the relaxation phase of the cardiac cycle when the heart fills with blood.
#5
What is the term for the sound produced by turbulent blood flow through narrowed vessels?
Heart murmur
ExplanationA heart murmur is the sound produced by turbulent blood flow through narrowed vessels.
#6
Which of the following is a common symptom of a heart attack?
Chest pain or discomfort
ExplanationChest pain or discomfort is a common symptom of a heart attack.
#7
Which of the following is a function of the cardiovascular system?
Transportation
ExplanationThe cardiovascular system is responsible for the transportation of nutrients, oxygen, and waste products throughout the body.
#8
Which chamber of the heart pumps blood to the entire body?
Left ventricle
ExplanationThe left ventricle pumps oxygenated blood to the entire body.
#9
What is the term for the volume of blood pumped by the heart in one minute?
Cardiac output
ExplanationCardiac output refers to the volume of blood pumped by the heart in one minute.
#10
Which of the following is a risk factor for developing cardiovascular disease?
High blood pressure
ExplanationHigh blood pressure is a significant risk factor for cardiovascular disease.
#11
What is the primary function of the sinoatrial (SA) node in the heart?
Initiates electrical impulses
ExplanationThe SA node initiates the electrical impulses that regulate the heartbeat.
#12
What is the medical term for high blood pressure?
Hypertension
ExplanationHypertension is the medical term for high blood pressure.
#13
Which blood vessel carries deoxygenated blood from the body back to the heart?
Vena cava
ExplanationThe vena cava carries deoxygenated blood from the body back to the heart.
#14
Which of the following is NOT a type of blood vessel?
Lymphatic vessel
ExplanationLymphatic vessels are part of the lymphatic system, not the cardiovascular system.
#15
Which of the following hormones increases heart rate and blood pressure?
Epinephrine
ExplanationEpinephrine, also known as adrenaline, increases heart rate and blood pressure.
#16
Which condition is characterized by the accumulation of fatty deposits in the arteries?
Atherosclerosis
ExplanationAtherosclerosis is characterized by the buildup of fatty deposits in the arteries.
#17
What is the term for the formation of a blood clot within a blood vessel?
Thrombosis
ExplanationThrombosis is the formation of a blood clot within a blood vessel.
#18
What is the term for the abnormal rhythm of the heart?
Arrhythmia
ExplanationArrhythmia refers to an abnormal rhythm of the heart.
#19
Which of the following is a condition where the heart's ventricles beat out of sync with the atria?
Ventricular tachycardia
ExplanationVentricular tachycardia is a condition where the heart's ventricles beat out of sync with the atria.