#1
Which chamber of the heart pumps oxygenated blood to the body?
Left ventricle
ExplanationLeft ventricle pumps oxygenated blood to the body.
#2
What is the function of the cardiovascular system?
To transport nutrients and oxygen to cells and remove waste products
ExplanationCardiovascular system transports nutrients and oxygen, removes waste.
#3
Which of the following is NOT a risk factor for cardiovascular disease?
Regular exercise
ExplanationRegular exercise is not a risk factor for cardiovascular disease.
#4
What is the name of the largest artery in the human body?
Aorta
ExplanationAorta is the largest artery in the human body.
#5
What is the name of the membrane sac that encloses the heart?
Pericardium
ExplanationPericardium is the membrane sac enclosing the heart.
#6
Which of the following is NOT a major blood vessel connected to the heart?
Femoral vein
ExplanationFemoral vein is not a major blood vessel connected to the heart.
#7
Which of the following is a major risk factor for atherosclerosis?
Smoking
ExplanationSmoking is a major risk factor for atherosclerosis.
#8
Which blood vessels carry oxygen-rich blood away from the heart?
Arteries
ExplanationArteries carry oxygen-rich blood away from the heart.
#9
Which valve prevents the backflow of blood from the left ventricle into the left atrium?
Mitral valve
ExplanationMitral valve prevents backflow into the left atrium.
#10
Which of the following is a symptom of a heart attack?
Sudden chest pain or discomfort
ExplanationSudden chest pain or discomfort is a symptom of a heart attack.
#11
What is the medical term for high blood pressure?
Hypertension
ExplanationHypertension is the medical term for high blood pressure.
#12
What is the term for the relaxation phase of the cardiac cycle?
Diastole
ExplanationDiastole is the term for the relaxation phase of the cardiac cycle.
#13
Which of the following blood components is responsible for clotting?
Platelets
ExplanationPlatelets are responsible for clotting.
#14
Which of the following vessels carries deoxygenated blood from the heart to the lungs?
Pulmonary artery
ExplanationPulmonary artery carries deoxygenated blood to the lungs.
#15
What is the function of the sinoatrial (SA) node in the heart?
To conduct electrical impulses and initiate heartbeats
ExplanationSA node conducts impulses, initiates heartbeats.
#16
Which of the following is a function of the cardiovascular system in addition to transporting nutrients and oxygen?
Removing carbon dioxide from tissues
ExplanationCardiovascular system also removes carbon dioxide from tissues.
#17
Which of the following is NOT a part of the conduction system of the heart?
Pulmonary vein
ExplanationPulmonary vein is not part of the heart's conduction system.
#18
Which of the following conditions is characterized by an irregular heartbeat?
Arrhythmia
ExplanationArrhythmia is characterized by an irregular heartbeat.
#19
What is the term for the period of time when the heart is relaxed and filling with blood?
Diastole
ExplanationDiastole is the period when heart is relaxed and filling with blood.