Question

new vocabulary

• mast cells - white blood cells that reside in connective tissue and signal damage
• histamines - hormones that stimulate blood flow to an area
• phagocytes - white blood cells that invading bacteria
• b lymphocytes (b cells) - white blood cells produced and mature in bone marrow that recognize a , but differently than t cells
• t lymphocytes (helper t cells) - white blood cells produced in bone marrow, but mature in the that recognize a specific antigen, but differently than b cells
• macrophage - white blood cells that consume non - self cells via
• memory b cells - white blood cells that retain “memory” of prior infectious agents in immunity
• cytotoxic t cells - white blood cells that attack infectious agents
• memory t cells - white blood cells that recognize previous infectious agents, but unlike b cells, do not produce antibodies
• antibodies - proteins made that tag non - self cells to be destroyed by attaching to their antigens
• antigens - a foreign substance that stimulates immune response, usually on the surface of a foreign substance (surface proteins)

Explanation:

Phagocytes engulf and digest invading bacteria. B - lymphocytes recognize specific antigens. T - lymphocytes mature in the thymus. Macrophages consume non - self cells via phagocytosis. Memory B cells are involved in adaptive immunity. Cytotoxic T cells directly attack infectious agents.

Answer:

Phagocytes - engulf and digest; B Lymphocytes - specific antigen; T Lymphocytes - thymus; Macrophages - phagocytosis; Memory B Cells - adaptive; Cytotoxic T Cells - directly