#1
Which of the following is not a major component of the cardiovascular system?
Brain
ExplanationThe brain is not a component of the cardiovascular system.
#2
Which chamber of the heart receives oxygenated blood from the lungs?
Left atrium
ExplanationThe left atrium receives oxygenated blood from the lungs.
#3
What is the average adult resting heart rate?
60-80 beats per minute
ExplanationThe average adult resting heart rate is 60-80 beats per minute.
#4
Which of the following is responsible for carrying deoxygenated blood back to the heart?
Veins
ExplanationVeins carry deoxygenated blood back to the heart.
#5
What is the medical term for high blood pressure?
Hypertension
ExplanationHypertension is the medical term for high blood pressure.
#6
Which blood vessels carry oxygenated blood away from the heart?
Arteries
ExplanationArteries carry oxygenated blood away from the heart.
#7
What is the term for the relaxation phase of the cardiac cycle?
Diastole
ExplanationDiastole is the term for the relaxation phase of the cardiac cycle.
#8
Which of the following is NOT a risk factor for cardiovascular disease?
Regular exercise
ExplanationRegular exercise is not a risk factor for cardiovascular disease.
#9
Which hormone is released by the adrenal glands during the 'fight or flight' response, increasing heart rate and blood pressure?
Adrenaline
ExplanationAdrenaline is released during 'fight or flight,' increasing heart rate and blood pressure.
#10
What is the term for the volume of blood ejected by the heart in one contraction?
Stroke volume
ExplanationStroke volume is the volume of blood ejected by the heart in one contraction.
#11
Which of the following is NOT a symptom of a heart attack?
Sudden increase in blood pressure
ExplanationA sudden increase in blood pressure is not a symptom of a heart attack.
#12
Which of the following is NOT a function of the cardiovascular system?
Coordinating movement
ExplanationCoordinating movement is not a function of the cardiovascular system.
#13
What is the term for the condition in which fatty deposits accumulate in the inner lining of the arteries?
Atherosclerosis
ExplanationAtherosclerosis is the accumulation of fatty deposits in artery linings.
#14
Which of the following is a symptom of peripheral artery disease (PAD)?
Leg cramps during walking
ExplanationLeg cramps during walking are a symptom of peripheral artery disease.
#15
What is the medical term for a rapid, irregular heartbeat?
Arrhythmia
ExplanationArrhythmia is the medical term for a rapid, irregular heartbeat.
#16
Which blood vessel carries deoxygenated blood from the heart to the lungs?
Pulmonary artery
ExplanationThe pulmonary artery carries deoxygenated blood from the heart to the lungs.
#17
What is the term for the inability of the heart to pump enough blood to meet the body's demands?
Heart failure
ExplanationHeart failure is the inability to pump enough blood to meet the body's demands.
#18
Which of the following is a common risk factor for both cardiovascular disease and stroke?
High blood pressure
ExplanationHigh blood pressure is a common risk factor for both cardiovascular disease and stroke.
#19
What is the term for the brief loss of consciousness caused by a temporary drop in blood flow to the brain?
Syncope
ExplanationSyncope is the term for brief loss of consciousness due to a drop in blood flow to the brain.
#20
What is the function of the sinoatrial (SA) node in the heart?
To conduct electrical impulses
ExplanationThe SA node conducts electrical impulses in the heart.
#21
What condition is characterized by the accumulation of plaque in the arteries, leading to reduced blood flow?
Atherosclerosis
ExplanationAtherosclerosis is characterized by plaque accumulation, reducing blood flow in arteries.
#22
What is the name of the valve that separates the left ventricle from the aorta?
Aortic valve
ExplanationThe aortic valve separates the left ventricle from the aorta.