How do stomach poisons enter the body?

Stomach poisons, also known as systemic poisons or ingested poisons, are designed to enter the body through the digestive system. When these substances are consumed, they travel through the mouth, down the esophagus, and into the stomach where they can be absorbed into the bloodstream. This method of entry allows the toxins to affect various systems in the body, leading to serious health implications.

The other methods of entry—through the skin, respiratory tract, or eyes—are associated with different types of exposures. For instance, certain poisons can penetrate through the skin or be inhaled through the respiratory system, but stomach poisons specifically require ingestion to exert their effects. Hence, the correct answer correctly identifies the method through which stomach poisons enter the body.