Final answer:
Enterotoxin affects the intestines; it is a type of toxin that targets the intestinal mucosa leading to symptoms associated with food poisoning.
Step-by-step explanation:
The part of the body that would be affected by enterotoxin is the intestines. Enterotoxins are toxins produced by certain bacteria, and they target the intestinal mucosa, causing gastrointestinal symptoms such as diarrhea, vomiting, and stomach cramps. These symptoms are typical in cases of food poisoning due to a preformed bacterial toxin present in the food. The term 'enteric' as in the enteric nervous system, which controls the digestive organs, supports that the intestines are involved in responses to such toxins. Furthermore, the enteric nervous system can directly influence digestive function through neural connections within the walls of the digestive tract. This autonomous system regulates the motility and secretion of the intestines without direct CNS involvement.