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15 questions
Which blood cells are responsible for carrying oxygen?
What component of blood gives it its red color?
Which blood cells help protect the body from infection?
What is the primary function of platelets?
Which type of blood vessel carries oxygenated blood?
How do veins differ in terms of oxygen content compared to arteries?
What is the main role of capillaries in the circulatory system?
Which age-related change affects the heart muscle's ability to contract properly?
What happens to the arteries as a person ages?
Which of the following is a common change in veins due to aging?
Why does blood pressure typically increase with age?
Which age-related change reduces the oxygen supply to body cells?
What changes occur in the coronary arteries as a person ages?
What is one effect of the aging electrical system of the heart?
Which of the following is NOT a typical age-related cardiovascular change?