Biography. After five gold medals at the 1967 Pan American Games, great things were expected of Mark Spitz at the 1968 Olympics, but he surprisingly failed to win an individual event. Before the 1972 Olympics, however, Spitz became undoubtedly the world's greatest swimmer, and considered by many the greatest ever.iography. After five gold medals at the 1967 Pan American Games, great things were expected of Mark Spitz at the 1968 Olympics, but he surprisingly failed to win an individual event. Before the 1972 Olympics, however, Spitz became undoubtedly the world's greatest swimmer, and considered by many the greatest ever.
What substance is release by the mast cells in response to allergic reaction? Histamine is the primary effector substance released by the mast cell in response to an allergy. When you have an allergy to something, you exhibit certain common symptoms. Retired college science professor. Member of Beta Beta Beta Biological Honor Society, ACS & AAAS.
Allergen: A foreign substance that causes an allergic reaction in the body. B cells: Cells produced in bone marrow that secrete antibodies. Immune response: The production of antibodies in response to foreign substances in the body.Immunity: The condition of being able to resist the effects of a particular disease.The immune system is the body's natural defense system.) The antibodies attach, or bind, themselves to the antigen and inactivate it. Every healthy adult's body has small amounts of thousands of different antibodies. Each one is highly specialized to recognize just one kind of foreign substance.