SAT - about the heart/cardiovascular system / circulatory system/electrocardiograms/cardiac arrhythmias

What is the main function of the heart?
Pump blood throughout the body
Produce red blood cells
Regulate body temperature
Digest food
Which blood vessels carry oxygenated blood away from the heart?
Arteries
Veins
Capillaries
Lymphatic vessels
What is the correct order of blood flow through the heart?
Right atrium, right ventricle, left atrium, left ventricle
Left atrium, left ventricle, right atrium, right ventricle
Right ventricle, right atrium, left ventricle, left atrium
Left ventricle, left atrium, right ventricle, right atrium
Which of the following is NOT a component of blood?
Red blood cells
White blood cells
Platelets
Plasma
What is the average resting heart rate for adults?
50-60 beats per minute
70-80 beats per minute
90-100 beats per minute
110-120 beats per minute
Which of the following is a common symptom of a heart attack?
Chest pain or discomfort
Shortness of breath
Headache
Nausea or vomiting
Fatigue
What is an electrocardiogram (ECG/EKG) used to measure?
Blood pressure
Heart rate and rhythm
Oxygen saturation
Lung capacity
Which of the following is a cardiac arrhythmia?
Atrial fibrillation
Ventricular tachycardia
Hypertension
Coronary artery disease
Bradycardia
What is the purpose of blood vessels called capillaries?
To carry oxygenated blood away from the heart
To exchange nutrients and waste products between blood and tissues
To regulate blood pressure
To store excess blood
Which chamber of the heart pumps oxygenated blood to the rest of the body?
Right atrium
Right ventricle
Left atrium
Left ventricle
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