<human>: What is the most important thing to know about a syringe?
<bot>: The most important thing to know about a syringe is that it’s used for injecting medicine into the body. It can also be used to draw blood, which is why it is often referred to as a “needle”. Syringes are usually made of plastic and have a long thin tube at one end called an “injection site” or “needle”. This injection site is where the medicine is injected into the body.