#1
Which of the following is not a major component of the cardiovascular system?
Lungs
ExplanationLungs are part of the respiratory system, not the cardiovascular system.
#2
What is the average resting heart rate for adults?
60-70 beats per minute
ExplanationThe normal resting heart rate for adults is between 60 and 70 beats per minute.
#3
Which blood vessels carry blood away from the heart?
Arteries
ExplanationArteries carry blood away from the heart to various parts of the body.
#4
What is the medical term for high blood pressure?
Hypertension
ExplanationHigh blood pressure is medically referred to as hypertension.
#5
Which of the following is NOT a function of the cardiovascular system?
Producing hormones
ExplanationThe cardiovascular system is primarily responsible for transporting blood and nutrients, not hormone production.
#6
Which of the following is not a risk factor for cardiovascular disease?
Low cholesterol levels
ExplanationLow cholesterol levels are generally considered a protective factor against cardiovascular disease.
#7
What is the term for a temporary shortage of blood supply to the heart, causing chest pain?
Angina
ExplanationAngina is the term for temporary chest pain due to reduced blood supply to the heart.
#8
What is the medical term for a heart attack?
Myocardial infarction
ExplanationA heart attack is medically known as myocardial infarction.
#9
What is the function of the sinoatrial (SA) node in the heart?
To conduct electrical impulses
ExplanationThe SA node is responsible for initiating and conducting electrical impulses that regulate the heart's rhythm.
#10
Which of the following is not a symptom of heart failure?
Chest pain
ExplanationChest pain is not typically a symptom of heart failure.
#11
Which chamber of the heart receives oxygen-rich blood from the lungs?
Left atrium
ExplanationThe left atrium receives oxygenated blood from the lungs before pumping it to the rest of the body.
#12
Which of the following is not a type of heart valve?
Ventral valve
ExplanationThere is no heart valve known as the ventral valve.
#13
Which of the following hormones is primarily responsible for increasing heart rate and blood pressure during stress?
Cortisol
ExplanationCortisol is the hormone responsible for increasing heart rate and blood pressure during stress.