Which route involves poisons that are introduced into the body by injection?

• A. Ingestion
• B. Absorption
• C. Injection
• D. Inhalation

Answer: (C)

Poisons can enter the body through different pathways, and this question focuses on the injection route. Injection means delivering substances directly into body tissues or into a blood vessel using a needle or syringe, bypassing the digestive tract and lungs. This allows the toxin to reach the bloodstream or target tissues quickly, depending on the injection site (for example, intravenous, intramuscular, or subcutaneous).

In contrast, ingestion involves swallowing the substance so it travels through the digestive system; absorption refers to substances crossing skin or mucous membranes into the bloodstream; and inhalation means breathing the substance into the lungs. Because injection is the route that introduces poisons via a needle, it is the correct description here.