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Lysozymes
Lysozymes
Lysozymes
Lysozymes
Lysozymes
First exposure: 1. Sensitizing dose - elicits no symptoms 2. Memory B cells are produced 3.Small amount of IgE antibodies are produced 4. Mast cells and basophils activated. This the first step. Then: Second exposure: 1. Allergens bind to memory B cells 2. B cells produce large amounts of IgE antibodies (high titer) 3. IgE bind to mast and basophil cells 4.Release chemical mediatorsThe antibodies attach to the antigens (invader) and inactivate them (killing).
Yes tonsil is a part of immune system. It is a first line of defence.
The hundreds of different viruses responsible for causing a common cold all make their attack on the human body in the upper respiratory tract. The virus particles attach to the cells of the mucous tissue in sinuses, nose, mouth, eyes, throat and trachea first. The bronchial tubes and lungs also can be affected. In addition to the respiratory system and eyes, the immune system is triggered to work to rid your body of the invader with an immune response, which will employ resources from the circulatory system and blood forming organs.
the bodies immune system tells the white blood cells to attack enemy bacteria (etc.) as the first response to the immune system's defense
1- the immune systems helps fight off diseases 2-your skin is the first line of defense for your immune system. hope that helps!:)
Yes adenoids are part of immune system. It is the first line of defense.
Alexander the Great was the first European invader on Indian soil.