HOSA Dental Terminology Practice

What type of syringe is a Luer-loc syringe?

1. Disposable and automatic

2. Barrel-type with piston force plunger

3. Single-use and non-locking

4. Vacuum sealed

The correct answer is: Barrel-type with piston force plunger

A Luer-loc syringe is characterized by its specific design features that give it functionality in various medical and dental applications. The correct choice, identifying it as a barrel-type syringe with a piston force plunger, highlights the mechanism by which these syringes operate. In this design, the barrel serves as the container for the fluid, and the piston, which can be pushed and pulled, creates a vacuum or pressure to draw fluid in or push it out. The syringe's design allows for precise control of the fluid's delivery, which is essential in clinical and laboratory settings. Further distinguishing features of the Luer-loc design include a threaded tip that allows for secure attachment of needles, ensuring that they won't come loose during use. This locking mechanism provides safety and improves the reliability of injections or aspirating fluids. While the other options mention various types of syringes, they do not capture the specific design and operational characteristics of the Luer-loc syringe. The mention of "disposable and automatic" and "single-use and non-locking" does not accurately convey the functionality that defines the Luer-loc syringe, while “vacuum sealed” does not pertain to its typical design or use in clinical practice.