Final answer:
The true statement about an irrigating syringe with a bulb but no barrel is that it is a one piece bulb that tapers to a blunt end, used for medical irrigating purposes.
Step-by-step explanation:
The statement that is true concerning an irrigating syringe that has a bulb without a barrel is that it is a one piece bulb that tapers to a blunt end. Such syringes are typically made of rubber or plastic and are commonly used for irrigating wounds or areas that require gentle cleaning with a fluid. They are not calibrated in ounces, do not typically have a glass bulb, and are not used with a needle, which differentiates them from other medical instruments such as a burette, which is a liquid dispensing system used to indicate the volume of liquid dispensed, particularly in titrations.