#1
Which chamber of the heart receives oxygenated blood from the lungs?
Left atrium
ExplanationReceives oxygenated blood from the lungs.
#2
What is the main function of red blood cells?
Transporting oxygen
ExplanationMainly responsible for transporting oxygen.
#3
Which chamber of the heart receives deoxygenated blood from the body?
Right atrium
ExplanationReceives deoxygenated blood from the body.
#4
What is the main function of arteries?
To carry oxygenated blood away from the heart
ExplanationTransport oxygenated blood away from the heart.
#5
Which hormone increases heart rate and blood pressure during times of stress or danger?
Adrenaline
ExplanationAdrenaline increases heart rate and blood pressure.
#6
What is the name of the large artery that carries oxygenated blood away from the heart to the rest of the body?
Aorta
ExplanationCarries oxygenated blood to the body.
#7
Which blood vessels carry blood away from the heart?
Arteries
ExplanationCarry blood away from the heart.
#8
What is the pacemaker of the heart called?
SA node (sinoatrial node)
ExplanationResponsible for initiating heartbeats.
#9
Which valve separates the right atrium from the right ventricle?
Tricuspid valve
ExplanationSeparates right atrium and right ventricle.
#10
What is the medical term for high blood pressure?
Hypertension
ExplanationCondition of elevated blood pressure.
#11
Which of the following is not a risk factor for cardiovascular disease?
Regular exercise
ExplanationRegular exercise reduces risk.
#12
What is the term for the inflammation of the inner lining of the heart chambers and valves?
Endocarditis
ExplanationInflammation of heart lining.
#13
Which of the following is NOT a risk factor for cardiovascular disease?
Regular exercise
ExplanationRegular exercise is a protective factor.
#14
Which blood vessels have the thinnest walls?
Capillaries
ExplanationCapillaries have the thinnest walls.
#15
Which of the following is not a symptom of a heart attack?
Increased appetite
ExplanationIncreased appetite is not a symptom.
#16
What is the medical term for a heart attack?
Myocardial infarction
ExplanationMedical term for a heart attack.
#17
What is the medical term for an irregular heartbeat?
Arrhythmia
ExplanationMedical term for irregular heartbeat.