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- Arteries: These are blood vessels that carry oxygen-rich blood away from the heart to the rest of the body. They have thick walls and are under high pressure, so they have a pulse.
- Veins: These are blood vessels that carry oxygen-poor blood back to the heart from the rest of the body. They have thinner walls and less pressure, so they don’t have a pulse.
- Capillaries: These are tiny blood vessels that connect arteries to veins. They are where gas and nutrient exchange occurs with the body’s tissues.
- Aorta: This is the largest artery in the body that carries oxygen-rich blood from the heart to the rest of the body.
- Superior and Inferior Vena Cava: These are the largest veins in the body that bring oxygen-poor blood back to the heart.
- Pulmonary Artery: This is the artery that carries oxygen-poor blood from the heart to the lungs to get oxygenated.
- Pulmonary Veins: These are the veins that carry oxygen-rich blood from the lungs back to the heart.
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