#1
Which chamber of the heart receives oxygenated blood from the lungs?
Left atrium
ExplanationLeft atrium receives oxygenated blood from the lungs.
#2
What is the average resting heart rate for adults?
70-80 beats per minute
ExplanationThe average resting heart rate for adults is 70-80 beats per minute.
#3
Which of the following is not a function of the cardiovascular system?
Assisting in immune response
ExplanationAssisting in immune response is not a function of the cardiovascular system.
#4
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.
#5
Which of the following is not a risk factor for hypertension?
Gender
ExplanationGender is not a risk factor for hypertension.
#6
Which blood vessels carry oxygenated blood away from the heart?
Arteries
ExplanationArteries carry oxygenated blood away from the heart.
#7
What is the term for the volume of blood pumped by each ventricle per minute?
Cardiac output
ExplanationCardiac output refers to the volume of blood pumped by each ventricle per minute.
#8
What is the role of the sinoatrial (SA) node in the heart?
Conduction of electrical signals
ExplanationThe SA node is responsible for the conduction of electrical signals in the heart.
#9
Which component of blood is responsible for clotting?
Platelets
ExplanationPlatelets are responsible for clotting.
#10
Which of the following is responsible for carrying deoxygenated blood from the body to the heart?
Inferior vena cava
ExplanationThe inferior vena cava carries deoxygenated blood from the body to the heart.
#11
Which of the following is not a risk factor for cardiovascular disease?
Regular exercise
ExplanationRegular exercise is not a risk factor for cardiovascular disease.
#12
What is the function of the mitral valve in the heart?
Preventing backflow of blood into the left atrium
ExplanationThe mitral valve prevents backflow of blood into the left atrium.
#13
In which part of the cardiovascular system does gas exchange occur?
Capillaries
ExplanationGas exchange occurs in the capillaries.
#14
What is the term for the condition where blood flow to a part of the heart muscle is blocked, leading to tissue damage?
Myocardial infarction
ExplanationMyocardial infarction refers to the blockage of blood flow to a part of the heart muscle, leading to tissue damage.
#15
What is the term for the condition characterized by the accumulation of fatty deposits in the inner lining of arteries?
Atherosclerosis
ExplanationAtherosclerosis is characterized by the accumulation of fatty deposits in the inner lining of arteries.