How are the processes of blood clotting, immune response, allergic reaction, and hormone release interrelated?

http://www.google.com/search?hl=en&as_q=interaction+%22blood+clotting%22+%22immune+response%22+%22allergic+reaction%22+%22hormone+release%22&as_epq=&as_oq=&as_eq=&num=10&lr=&as_filetype=&ft=i&as_sitesearch=&as_qdr=all&as_rights=&as_occt=any&cr=&as_nlo=&as_nhi=&safe=images