#1
Which of the following vessels carries oxygenated blood away from the heart?
Aorta
ExplanationAorta carries oxygenated blood away from the heart.
#2
Where is the tricuspid valve located?
Between the right atrium and right ventricle
ExplanationTricuspid valve is located between the right atrium and right ventricle.
#3
Which vessel carries deoxygenated blood from the heart to the lungs?
Pulmonary artery
ExplanationPulmonary artery carries deoxygenated blood to the lungs.
#4
Which of the following is a major function of the cardiovascular system?
Transportation
ExplanationCardiovascular system's major function is transportation.
#5
What is the name of the valve between the left atrium and the left ventricle?
Mitral valve
ExplanationMitral valve is between the left atrium and left ventricle.
#6
Which artery supplies blood to the heart muscle itself?
Coronary artery
ExplanationCoronary artery supplies blood to the heart muscle.
#7
What is the main function of the coronary arteries?
To supply oxygenated blood to the heart muscle
ExplanationCoronary arteries supply oxygenated blood to the heart muscle.
#8
What is the main function of the sinoatrial (SA) node in the heart?
To conduct electrical impulses
ExplanationSA node conducts electrical impulses in the heart.
#9
Which of the following is NOT a function of the pericardium?
To regulate blood pressure
ExplanationPericardium does not regulate blood pressure.
#10
What is the role of the atrioventricular (AV) node in the heart's electrical conduction system?
To conduct electrical impulses between the atria and ventricles
ExplanationAV node conducts electrical impulses between atria and ventricles.
#11
Which of the following is a major risk factor for coronary artery disease?
High blood pressure
ExplanationHigh blood pressure is a major risk factor for coronary artery disease.