The Circulatory system

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10 Terms

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What is the function of the circulatory system?
To transport oxygen, nutrients, hormones, and waste products throughout the body.
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What are the main components of the circulatory system?
The heart, blood vessels, and blood.
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What is the largest artery in the body?
The aorta.
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What is the role of red blood cells?
To carry oxygen from the lungs to the body and carbon dioxide from the body back to the lungs.
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What type of blood vessel carries blood away from the heart?
Arteries.
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What type of blood vessel returns blood to the heart?
Veins.
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What is the function of capillaries?
To allow the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.
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What is blood pressure?
The force of blood against the walls of the blood vessels.
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What is the heart's natural pacemaker called?
The sinoatrial (SA) node.
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What is the difference between systemic and pulmonary circulation?
Systemic circulation carries oxygen-rich blood from the heart to the rest of the body, while pulmonary circulation carries oxygen-poor blood from the heart to the lungs.