needle and syringe

A needle is a slender, hollow instrument used to puncture the skin and access veins or tissues, facilitating the delivery or withdrawal of fluids. A syringe is a device composed of a cylindrical barrel, a plunger, and a needle, designed to draw in or inject liquids accurately. Together, they are commonly used in medical settings for administering medications, vaccines, or taking blood samples. The syringe allows precise control of fluid transfer, while the needle provides a safe, sterile way to penetrate the skin and reach target areas. Proper use ensures effective treatment and minimizes infection risk.