Alexis St. Martin is famous for

Options

A. His views on evolution
B. Work on animal breeding
C. Open stomach for experiments on digestion
D. Being first person to study digestion.

Answer

**Step-by-Step Solution:**

1. **Identify the Subject**: The question asks about Alexis St. Martin and what he is famous for.

2. **Historical Context**: In 1822, Alexis St. Martin was accidentally shot with a musket at close range, which resulted in a severe injury.

3. **Medical Treatment**: He was treated by an army physician named William Beaumont. Beaumont played a crucial role in St. Martin's life post-accident.

4. **Unique Condition**: Due to the nature of his injury, St. Martin's wound did not heal completely, resulting in an opening into his stomach. This unique condition allowed for direct observation of the digestive process.

5. **Research Contributions**: Beaumont conducted several experiments on St. Martin, using the opening in his stomach to study gastric juices and the process of digestion. This research significantly contributed to our understanding of human digestion.

6. **Conclusion**: Based on the information, Alexis St. Martin is famous for being the subject of experiments on digestion due to his open stomach, which allowed for direct study of gastric processes.

7. **Final Answer**: Therefore, the correct answer is that Alexis St. Martin is famous for "open stomach for experiments on digestion."

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