Final answer:
Inflammation in Marlene's wound caused pain due to increased edema, prostaglandins, and potential neuron injury.
Explanation:
The inflammation of Marlene's wound led to significant pain due to:
- Increased edema from altered capillary permeability: When the swelling compresses surrounding nerves, it applies pressure, causing pain.
- Prostaglandins: These substances released during inflammation activate pain neurons, contributing to the sensation of pain.
- Direct neuron injury: Pain may result from injury to neurons caused by certain pathogens or substances.
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