#1
Which chamber of the heart receives oxygenated blood from the lungs?
Left atrium
ExplanationReceives oxygen-rich blood from the lungs.
#2
Which blood vessels carry oxygen-rich blood away from the heart to the body?
Arteries
ExplanationTransport oxygenated blood from the heart to the body's tissues.
#3
What is the medical term for high blood pressure?
Hypertension
ExplanationElevated pressure in the arteries.
#4
What is the normal resting heart rate for adults?
60-80 beats per minute
ExplanationTypical heart rate at rest for adults.
#5
Which of the following is a procedure used to diagnose cardiovascular diseases by recording the electrical activity of the heart?
Electrocardiogram (ECG or EKG)
ExplanationRecords heart's electrical activity for diagnosis.
#6
Which condition involves the buildup of plaque in the arteries, restricting blood flow?
Atherosclerosis
ExplanationPlaque accumulation in arteries, reducing blood flow.
#7
Which of the following is a risk factor for cardiovascular diseases?
Smoking
ExplanationSmoking increases cardiovascular disease risk.
#8
Which valve prevents the backflow of blood from the left ventricle into the left atrium?
Mitral valve
ExplanationEnsures one-way flow from left ventricle to left atrium.
#9
Which of the following is a symptom of a stroke?
Sudden numbness or weakness in the face, arm, or leg
ExplanationCommon symptom indicating possible stroke.
#10
Which of the following is not a major risk factor for cardiovascular diseases?
Regular physical activity
ExplanationRegular physical activity reduces risk.
#11
What is the medical term for a heart attack?
Myocardial infarction
ExplanationHeart muscle damage due to blocked blood flow.
#12
What is the main function of the coronary arteries?
To carry oxygen-rich blood to the heart muscle
ExplanationSupply oxygen to heart muscles.
#13
Which of the following is a congenital heart defect where the aorta and pulmonary artery are switched?
Transposition of the great arteries
ExplanationAorta and pulmonary artery switch positions.
#14
What is the medical term for inflammation of the inner lining of the heart chambers and valves?
Endocarditis
ExplanationInflammation of heart's inner lining.
#15
Which of the following is a condition characterized by an abnormal enlargement of the heart muscle?
Cardiomyopathy
ExplanationAbnormal heart muscle enlargement.