שאלה משלב א׳ בפתולוגיה אבחנתית · מועד 2026, שאלה 26

All answers were accepted on this question. Antibodies act by NEUTRALISATION of microbes and toxins, by OPSONISATION and COMPLEMENT activation, and by engaging Fc receptors on NK cells for ANTIBODY-DEPENDENT CELLULAR CYTOTOXICITY; direct enhancement of CD8 T-CELL cytotoxicity is not an antibody mechanism (that is MHC class I-restricted), but the question as worded did not permit a single answer.