#1
Which chamber of the heart receives deoxygenated blood from the body?
Right atrium
ExplanationRight atrium receives deoxygenated blood from the body.
#2
What is the average resting heart rate for adults?
70-80 beats per minute
ExplanationAverage resting heart rate for adults is 70-80 beats per minute.
#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 term for the relaxation phase of the cardiac cycle?
Diastole
ExplanationDiastole is the relaxation phase of the cardiac cycle.
#5
Which of the following is TRUE regarding high blood pressure (hypertension)?
It can increase the risk of heart disease and stroke
ExplanationHigh blood pressure can increase the risk of heart disease and stroke.
#6
Which blood vessels carry oxygenated blood away from the heart to the body?
Arteries
ExplanationArteries carry oxygenated blood away from the heart to the body.
#7
What is the term for the force exerted by circulating blood against the walls of blood vessels?
Blood pressure
ExplanationBlood pressure is the force exerted by circulating blood against the walls of blood vessels.
#8
Which hormone is primarily responsible for regulating blood pressure and volume?
Aldosterone
ExplanationAldosterone is primarily responsible for regulating blood pressure and volume.
#9
What is the medical term for a heart attack?
Myocardial infarction
ExplanationMyocardial infarction is the medical term for a heart attack.
#10
Which of the following is NOT a symptom of a heart attack?
Sudden loss of vision
ExplanationSudden loss of vision is not a symptom of a heart attack.
#11
What is the primary function of the sinoatrial (SA) node in the heart?
To initiate the heartbeat
ExplanationSA node initiates the heartbeat in the heart.
#12
Which part of the brain controls heart rate and blood pressure?
Medulla oblongata
ExplanationMedulla oblongata controls heart rate and blood pressure.
#13
What is the term for the condition of irregular heart rhythm?
Arrhythmia
ExplanationArrhythmia is the condition of irregular heart rhythm.
#14
Which condition is characterized by the accumulation of fatty deposits in the arteries?
Atherosclerosis
ExplanationAtherosclerosis is characterized by the accumulation of fatty deposits in the arteries.
#15
What is the term for the hardening and narrowing of the arteries due to the buildup of plaque?
Arteriosclerosis
ExplanationArteriosclerosis is the term for the hardening and narrowing of the arteries due to the buildup of plaque.