Saturday, April 14

Inner Life

Leukocytes -- white blood cells -- normally flow around in blood unattached. An infection triggers signals that make the leukocytes move into tissue towards the foreign invader, in a process called extravasation. Extravasation needs specific interactions between the leukocytes and the endothilial cells lining the blood vessel. This process is visualized above. A longer version with biochemical commentary can be found here.


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