Red and white corpuscles

[Andrew Hall]

White cells carry receptors that are capable of recognising endothelial
cells (after the correct stimulation) and pushing their way through the
endothelium in a process (if I remember correctly!) called extravasitation.
Red cells do not carry these receptors nor are capable of producing them (no
nucleus).
Most immunology text books should carry info on this process.

Andrew

bernard.lesbats wrote in message <857tlv$f2d$1 at wanadoo.fr>...
>Hi everybody!
>
>Does anyone know why white corpuscles can pass through out of the thin
>vessels, while red corpuscles cannot?
>
>Thanks in advance.
>
>Babats
>
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>