Diapedesis is the movement of white blood cells through intact blood vessel walls into surrounding body tissue. It typically happens when an area of the body is injured or damaged, and an inflammation response is required. What role would you expect cell adhesion molecules to play in this process?
A. Cell adhesion molecules help white blood cells adhere to the blood vessel wall so that they can migrate across the wall and infiltrate into the underlying tissue.
B. Cell adhesion molecules will allow the white blood cells to cling to one another to form a migrating clot.
C. Cell adhesion molecules will allow the white blood cells to attach to the injured area so they become immobile.
Answer: A
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