Consider the following statements regarding human immunity: 1. Cell-mediated immunity is primarily mediated by T lymphocytes that mature in the thymus gland. 2. Humoral immunity involves B lymphocytes that differentiate into plasma cells producing circulating antibodies. Which of the statements given above is/are correct?

💡 Solution & Explanation

Adaptive immunity operates through two major arms where cell-mediated immunity depends on T cells destroying infected host cells, while humoral immunity relies on B cells secreting antigen-specific immunoglobulins into body fluids. Both systems require complex antigen presentation and cytokine signaling. Emil von Behring and Kitasato Shibasaburo discovered antitoxins, laying the foundation for humoral immunology.