Flashcards for:
Understanding Cell Mediated Immunity

APCs display antigens to Helper T cells to initiate their activation and subsequent immune response.

T cells are crucial for identifying and destroying infected host cells, providing targeted immunity.

Targeting pathogens that hide inside the body's own cells, such as viruses and some bacteria.

By coordinating both humoral and cell-mediated immune responses, targeting pathogens in body fluids and inside cells.

Cytotoxic T cells use lysis to puncture infected cell membranes, causing cell contents to spill out and lead to cell death.

T cells mature in the thymus.

Cytotoxic T cells target and destroy infected cells by puncturing cell membranes and inducing cell death.

Activated B cells divide into plasma cells, which produce antibodies.

Co-stimulation ensures that T cells receive additional activating signals from APCs, enhancing the immune response.

Cell mediated immunity targets pathogens inside body cells with T cells, while humoral immunity targets pathogens in body fluids with B cells.

Helper T cells act as 'generals' in the immune system, coordinating immune responses.

Dendritic cells act as antigen-presenting cells to help activate Helper T cells by displaying specific antigens.

Helper T cells secrete chemicals to activate B cells after B cells present antigens to them.

Helper T cells coordinate immune responses, while Cytotoxic T cells directly attack and destroy infected cells.

1. Dendritic cells or other APCs present antigens to Helper T cells, activating them. 2. Co-stimulation occurs through interactions with APCs developing new surface receptors.