All of the following occur during inflammation. What is the first step?Group of answer choicesdiapedesisrepairvasodilationmarginationphagocyte migration

Break Down the Problem

1. We need to identify the sequence of events that occur during inflammation.
2. Specifically, we are looking for the first step in the inflammatory process from the provided answer choices.

Relevant Concepts

• Inflammation is a protective response to injury or infection, involving various biological processes.
• The key steps in inflammation typically include:
  • Vasodilation
  • Increased vascular permeability
  • Margination of white blood cells
  • Diapedesis (migration of leukocytes through blood vessel walls)
  • Phagocyte migration and activity
  • Repair processes

Analysis and Detail

1. Vasodilation: This is generally the first response in inflammation, where blood vessels widen to increase blood flow to the injured area, leading to redness and heat.
2. Margination: This refers to the adherence of leukocytes to the endothelium of blood vessels.
3. Diapedesis: This step involves the movement of leukocytes out of the circulatory system and into the tissues.
4. Phagocyte migration: This occurs after leukocytes have moved to the site of injury and involves more specialized immune responses.
5. Repair: This is the final step where healing takes place, which happens after the inflammatory process.

Verify and Summarize

The sequence indicates that vasodilation is usually the first process initiated in inflammation, setting the stage for subsequent events like margination and diapedesis.

Final Answer

The first step in inflammation is vasodilation.