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INFECTION FIGHTERS

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Uploaded by on Oct 18, 2007

Your body's immune system has several defensive ploys to attack and destroy unwelcome and potentially harmful microscopic invaders.

The first defense is the skin and lining of organs that connect with the outside. These contain chemicals that break down unwelcome organisms.

If an organism somehow sneaks past the skin barrier, your immune system then mobilizes a host of other defenses.

Some cells surround the organisms while other cells, usually white blood cells called neutrophils, leave the blood vessel and enter the site of injury or infection.

Now, other bacteria-eating cells called macrophages, travel to the injured site.

They extend tentacle-like arms that reach out and snare the invading organism. The macrophage then destroys the microbe with powerful chemicals or swallows it whole.

Macrophages, neutrophils, and skin, along with other immune components such as antibodies, provide a multi-faceted defense against infection.

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  • @Richard00146  thank u for ur clarification.

  • Dude, they can leave the blood vessel through transmigration. When infection occured, the infected tissue releases chemicals on inflammed area. Creating presentins and icams. White blood cells are alerted to the presentins and icams, making them crawl and being slowed by presentins. Now, the icams provides a locking key that makes the White blood cells stop moving and also making them fit in small holes and leave the blood cells. After transmigration, monocytes turn into killer macrophage.

  • Dude, they can leave the blood vessel through transmigration. When infection occured, the infected tissue releases chemicals on inflammed area. Creating presentins and icams. White blood cells are alerted to the presentins and icams, making them crawl and being slowed by presentins. Now, the icams provides a locking key that makes the White blood cells stop moving and also making them fit in small holes and leave the blood cells. After transmigration, monocytes turn into killer macrophage.

  • Dude, they can leave the blood vessel through transmigration. When infection occured, the infected tissue releases chemicals on inflammed area. Creating presentins and icams. White blood cells are alerted to the presentins and icams, making them crawl and being slowed by presentins. Now, the icams provides a locking key that makes the White blood cells stop moving and also making them fit in small holes and leave the blood cells. After transmigration, monocytes turn into killer macrophage.

  • @eurabio hhahahaah u dumb fag

  • How do white cells leave a blood vessel? When thsy say blood vessel they mean veins or artiries right?

  • lol what perverts ofcourse its a naked lady.

  • i fucked a macrofag once

  • I think Realgreyblue means he wants one as a pet hahahah

  • Lol. You already have loads. Like, a few billion. :P

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