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Circulatory System Components and Function Quiz

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Questions and Answers

What is the main function of the circulatory system?

Transporting nutrients and oxygen throughout the body (correct)
Transporting oxygen to the lungs
Digesting food in the stomach
Filtering waste in the kidneys

Which component of blood is responsible for oxygen transport?

White blood cells
Hemoglobin (correct)
Red blood cells
Platelets

What does the SA Node in the heart do?

Control blood pressure
Filter impurities from the blood
Pump blood out of the heart
Regulate the heart's rhythm (correct)

What is the term for a solid mass formed in the bloodstream that can lead to blockages?

Blood clot (A) Signup and view all the answers

What is the primary function of arteries in the circulatory system?

Carry blood away from the heart (D) Signup and view all the answers

What is the role of platelets in the blood?

Assist in blood clotting to prevent excessive bleeding (A) Signup and view all the answers

Which component of the blood is responsible for carrying oxygen?

Red blood cells (B) Signup and view all the answers

What is the primary function of capillaries in the circulatory system?

Facilitating the exchange of nutrients and waste products between blood and tissues (B) Signup and view all the answers

Which statement best describes the difference between veins and arteries?

Veins have valves to prevent backflow of blood, arteries do not. (C) Signup and view all the answers

What effect does high blood pressure have on an individual's cardiovascular health?

Increases the risk of heart attacks and strokes (D) Signup and view all the answers

What is the function of white blood cells in the body?

Fighting infections and foreign invaders (D) Signup and view all the answers

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