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What is the difference between a syringe and a needle?
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The main difference between a syringe and a needle is that a syringe is typically used for injecting fluids, while a needle is used for drawing blood or other bodily fluids. Syringes usually have a plunger which can be pulled back to create negative pressure in order to draw up fluid from a container, whereas needles are simply inserted into a vein or other body part to draw blood.