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/sci/ - Science & Math

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1409651 No.1409651 [Reply] [Original]

Hey /sci/, I'm an engineering student, so don't bash me too much if what I'm asking is extremely stupid.
How do leukocytes "work"? Can they actually detect threats? Or they just float around in the bloodstream until they "crash" against a potential target?
I'm quite confused, to be honest.

Any recommended book? Nothing too technical, please.

>> No.1409659
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1409659

>engineering

>> No.1409663

In a way they "roll" along the blood vessels, anchored there. If there is a foreign substance in a cell, it induces a change in the signalling molecules which leukocytes detect. They then "flatten" and exit the blood vessels to go into the cell where they engulf the foreign substance

>> No.1409664

>>1409659
??? did I spell it wrong or anything?

>> No.1409666

>>1409664

You new here?

>> No.1409673

>>1409663
Thanks, I somehow kinda get it. I think.

>>1409666
Yeah. I usually lurk /k/ and /b/.

>> No.1409684
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1409684

>>1409651
>engineering

>> No.1409685

>>1409673

/sci/ doesn't look kindly upon engineering. Personally I don't see why, but there we go.

>> No.1409687
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1409687

>>1409651
I hear you likea the cock

>> No.1409689

>>1409685
Because nerds have a big need to masturbate to "smart" stuff like mathematics, quanto-bullshit, physics and all that other jazz

>> No.1409693
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1409693

Take your shit to /cm/ or /y/

>> No.1409696
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1409696

>>1409689

>> No.1409700
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1409700

>>1409689
ITT:butt-hurt engineer

(they like having there butt-hurt)

>> No.1409703

>>1409696
>gay engineers

Is there any other kind?

>> No.1409705

Why is it so hard to answer the question?

>> No.1409717

>>1409693
>>1409696
>>1409700
u mad nerd-bro

>> No.1409730

>>1409705
As far as the question goes, I assume you're talking about phagocytes (leukocyte can mean B and T cells as well).
In short, entry of bacteria or whatever cause chemical messenging, which makes the local blood vessels more permeable to larger molecules (vasodilation). Phagocytes move from blood to intersitial fluid, engulf bacteria, everyone's happy 'cept those naughty bacteria.