PELT - Components of blood, Protection, heat regulation, clotting and transportation - Functions of blood, Arteries - Thick muscular walled vessels that carry oxygenated blood from the heart to the body, Veins - Thin walled vessals with valves carry deoxygenated blood back to the heart, Blood pressure - The pressure of blood flow against the walls of the arteries, Pulse - Heartbeat that can be felt in the neck and wrist,

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