human
What is the difference between a syringe and a needle?
assistant
A syringe is a device used to transfer fluids from one container to another. It usually consists of a hollow tube with an opening at each end, connected by a narrow passage or lumen. The syringe can be filled with fluid, then squeezed or compressed to force the fluid out through the opening at one end. The other end of the syringe can then be inserted into a second container, allowing the fluid to be transferred.