Chapter 26.10, Problem 1CR

Summary Introduction

Natural killer cells which are also called NK cells are cytotoxic lymphocytes that are different from B cells (B lymphocytes) and T cells (T lymphocytes). These natural killer cells degrade the cells which are infected by intracellular pathogens or cancer cells. A T-cytotoxic cell is T lymphocyte which kills cancerous cells or cells infected with viruses.