Cardiovascular Quiz
A quiz about the cardiovascular system
1. Which organ pumps oxygenated blood to all parts of the body?
Heart
Brain
Liver
Lungs
2. What is the main function of red blood cells?
Carry oxygen
Carry carbon dioxide
Fight infections
Produce hormones
3. Which blood vessels carry blood away from the heart?
Arteries
Veins
Capillaries
Lymph vessels
4. What is the average resting heart rate for adults?
60-70 bpm
80-90 bpm
100-110 bpm
120-130 bpm
5. Which of the following factors can increase the risk of heart disease?
High blood pressure
Regular exercise
Low cholesterol levels
Healthy diet
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