Routes of entry to the body
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Routes of Entry for Hazardous Substances
Understanding the Routes
Overview: This video explores the various pathways through which hazardous substances can enter the body.
Inhalation
Definition: Inhalation occurs when substances are breathed in.
Examples: Biological agents (e.g., fungi), chemicals (e.g., solvents).
Risks: Airborne substances can penetrate the lungs and bloodstream, affecting multiple organs.
Absorption
Definition: Absorption happens when substances penetrate the skin.
Examples: Tetanus, benzene.
Risks: Skin contact allows substances to enter through pores or wounds.
Ingestion
Definition: Ingestion involves swallowing substances, leading to entry into the digestive system.
Risks: Poor personal hygiene can contribute to accidental ingestion.
Injection
Definition: Injection occurs when substances enter the body through accidental hypodermic needle injuries.
Risks: Accidental needle incidents pose risks; proper infection control and waste disposal are crucial.
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