

An insulin syringe has three parts: a needle, a barrel and a plunger. Parts of an Insulin Syringe. The needle is short and thin. It is made of a special material that allows the needle to slide through the skin easily with less pain. It comes with a cap to cover and protect it before it is used.
An insulin syringe has three parts: a needle, a barrel and a plunger. Parts of an Insulin Syringe. The needle is short and thin. It is made of a special material that allows the needle to slide through the skin easily with less pain. It comes with a cap to cover and protect it before it is used.
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