#1
Which of the following is NOT a component of the cardiovascular system?
Liver
ExplanationThe liver is part of the digestive system, not the cardiovascular system.
#2
What is the average resting heart rate for adults?
70-80 beats per minute
ExplanationThe normal range for adults' resting heart rate is 70-80 beats per minute.
#3
Which chamber of the heart pumps oxygenated blood to the body?
Left ventricle
ExplanationThe left ventricle pumps oxygenated blood to the body.
#4
What is the term for the pressure exerted by blood against the walls of blood vessels?
Blood pressure
ExplanationBlood pressure refers to the pressure exerted by blood against the walls of blood vessels.
#5
Which blood vessel carries oxygen-rich blood from the lungs to the heart?
Pulmonary vein
ExplanationThe pulmonary vein carries oxygen-rich blood from the lungs to the heart.
#6
What is the term for the condition where fatty deposits build up in the inner walls of arteries?
Atherosclerosis
ExplanationAtherosclerosis refers to the buildup of fatty deposits in the inner walls of arteries.
#7
Which of the following is a risk factor for developing hypertension?
Obesity
ExplanationObesity is a risk factor for developing hypertension.
#8
Which hormone is responsible for increasing blood pressure?
Aldosterone
ExplanationAldosterone is a hormone that increases blood pressure by retaining salt and water in the body.
#9
What is the medical term for high blood pressure?
Hypertension
ExplanationHypertension is the medical term for high blood pressure.
#10
Which of the following is NOT a function of blood?
Production of insulin
ExplanationBlood does not produce insulin; insulin is produced by the pancreas.
#11
What is the term for the force that opposes the flow of blood in blood vessels?
Peripheral resistance
ExplanationPeripheral resistance is the force that opposes the flow of blood in blood vessels.
#12
Which of the following hormones regulates blood calcium levels?
Parathyroid hormone
ExplanationParathyroid hormone regulates blood calcium levels.
#13
What is the name of the condition characterized by abnormally low blood pressure?
Hypotension
ExplanationHypotension is the condition characterized by abnormally low blood pressure.
#14
Which blood vessel carries oxygenated blood away from the heart to the rest of the body?
Aorta
ExplanationThe aorta carries oxygenated blood away from the heart to the rest of the body.
#15
Which of the following is a risk factor for developing cardiovascular disease?
Smoking
ExplanationSmoking is a significant risk factor for developing cardiovascular diseases.
#16
Which of the following is a symptom of a heart attack?
Sudden confusion
ExplanationSudden confusion can be a symptom of a heart attack due to reduced blood flow to the brain.
#17
Which of the following is a diagnostic test used to measure heart electrical activity?
Electrocardiogram
ExplanationAn electrocardiogram (ECG or EKG) is a diagnostic test used to measure heart electrical activity.
#18
Which of the following is a function of platelets in the blood?
Clotting
ExplanationPlatelets play a crucial role in blood clotting.
#19
Which of the following is a symptom of peripheral artery disease?
Leg pain during walking
ExplanationLeg pain during walking is a common symptom of peripheral artery disease due to reduced blood flow to the legs.