O IgA O IgG O IgM O IgE constitutes about 80% of circulating antibodies in plasma.

A lymphocyte cell may most likely encounter a blood born foreign invader in which of the following? O thoracic duct O kidney heart O spleen prt sc F10 home F11 F7 F8 F9 F6

Would pneumococcal pneumonia require a TH cell to stimulate a B cell to form antibodies?

Order the following extravasation-related events as they occur.                                                                 Oligosaccharide sulfated-sialyl-Lewis x moeity binds E-selectin                                                                 neutrophil extravasates through vascular endothelium into ECM                                                                 Neutrophil senses inflammatory cytokine                                                                 Oligosaccharide sulfated-sialyl-Lewis x moeity binds P-selectin                                                                 leukocyte integrins LFA-1 and CR3 bind ICAM-1 on the endothelium

Which of the following characteristics apply to this cell 1.  affected cell in mononucleosis 2.  # 1 in frequency 3.  synthesizes and releases cytokines 4.  phagocytic 5.  synthesizes and releases antibodies Choose from the following: (A) 1 and 2 (B) 3 and 5 (C) 2 and 3 (D) 2, 3, and 4 (E) 4 and 5

Antibodies are able to dispose of antigens In which of the following ways? )Neutralization Opsonization O Complement activation O Enhanced NK cell activity All of the above

Why is complement low in lupus?

We have to draw one of these out

Which immunoglobulin crosses the placenta? IgE IgA IgG IgM

O