I-syringe iyipompu elula ephindaphindayo, equkethe i-plunger ehambisana ngokuqinile ngaphakathi kwethuluzi eliyindilinga elibizwa nge-barrel. I-plunger ingadonswa futhi iphushwe ngokuqondile ngaphakathi kwethuluzi, okuvumela i-syringe ukuthi ingene futhi ikhiphe uketshezi noma igesi nge-orifice yokukhipha ekugcineni okuvulekile kwethuluzi. Ukugcina okuvulekile kwe-syringe kungafakwa nomjovo, umbhobho, noma umbhobho ukusiza ukuqondisa ukugeleza kungene naphuma ku-barrel. Ama-syringe avame ukusetshenziswa emitholampilo ukunikeza imijovo, ukufaka ukwelashwa kwe-intravenous egazini, ukufaka izinto ezinjengamatshwele noma amafutha, nokudweba/ukukala uketshezi.