#1
Which of the following is a risk factor for developing cardiovascular diseases?
High blood pressure
ExplanationHigh blood pressure increases strain on the heart and damages arteries.
#2
What is the medical term for high blood pressure?
Hypertension
ExplanationHypertension is the medical term for persistently high blood pressure, a risk factor for various cardiovascular diseases.
#3
What is the leading cause of death globally?
Cardiovascular disease
ExplanationCardiovascular disease is the leading cause of death worldwide, encompassing various conditions affecting the heart and blood vessels.
#4
Which of the following substances is primarily responsible for the hardening and narrowing of arteries in atherosclerosis?
Cholesterol
ExplanationCholesterol, when accumulated in arteries, contributes to the formation of plaque, leading to atherosclerosis.
#5
Which of the following is NOT a type of cardiovascular disease?
Pneumonia
ExplanationPneumonia is a respiratory condition, not a cardiovascular disease.
#6
What is the medical term for a heart attack?
Myocardial infarction
ExplanationA heart attack occurs when blood flow to the heart is blocked, causing damage to the heart muscle.
#7
Which chamber of the heart receives oxygen-rich blood from the lungs?
Left atrium
ExplanationThe left atrium receives oxygen-rich blood from the lungs before pumping it to the left ventricle.
#8
What is the term for the condition where there is a buildup of plaque in the arteries?
Atherosclerosis
ExplanationAtherosclerosis is the narrowing and hardening of arteries due to plaque buildup, leading to reduced blood flow.
#9
Which of the following is a common symptom of peripheral artery disease (PAD)?
Leg pain while walking
ExplanationLeg pain while walking (claudication) is a common symptom of PAD due to reduced blood flow to the legs.
#10
What is the primary function of cholesterol in the body?
Building cell membranes
ExplanationCholesterol is essential for building cell membranes and producing hormones.
#11
Which of the following is a potential complication of untreated hypertension?
Heart attack
ExplanationUntreated hypertension can lead to the increased risk of heart attack due to strain on the heart and damage to arteries.
#12
Which of the following is a diagnostic test used to measure heart activity through electrodes attached to the skin?
Electrocardiogram
ExplanationAn electrocardiogram (ECG or EKG) records the electrical activity of the heart through electrodes placed on the skin's surface.
#13
Which of the following is a symptom of congestive heart failure?
Persistent coughing
ExplanationPersistent coughing can occur due to fluid buildup in the lungs, a common symptom of congestive heart failure.
#14
What is the main function of the sinoatrial node (SA node) in the heart?
Regulate heart rate
ExplanationThe SA node initiates electrical impulses, regulating the heart's rhythm and rate.
#15
Which of the following is a type of cardiac arrhythmia characterized by rapid, irregular heartbeat?
Atrial fibrillation
ExplanationAtrial fibrillation is a condition where the heart's upper chambers quiver instead of contracting effectively, leading to an irregular heartbeat.
#16
What is the name of the valve that separates the left atrium from the left ventricle in the heart?
Mitral valve
ExplanationThe mitral valve prevents backward flow of blood from the left ventricle to the left atrium during contraction.
#17
Which of the following is NOT a major risk factor for developing coronary artery disease?
Regular exercise
ExplanationRegular exercise reduces the risk of coronary artery disease by promoting heart health and lowering blood pressure.
#18
What is the term for the condition where the heart muscle does not receive enough blood?
Angina pectoris
ExplanationAngina pectoris is chest pain or discomfort that occurs when the heart muscle doesn't get enough oxygen-rich blood.
#19
What is the name of the large artery that carries oxygen-rich blood away from the heart to the rest of the body?
Aorta
ExplanationThe aorta is the largest artery in the body, distributing oxygen-rich blood from the heart to the systemic circulation.