Lysozymes
The first line of defense in the immune system is the skin. Other important components of your immune system are the white blood cells, or Leukocytes; and the ability to produce antibodies. The most important would depend on what type of infecting agent you're exposed to at the time.
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Lysozymes
Lysozymes
Lysozymes
Lysozymes
Lysozymes
the bodies immune system tells the white blood cells to attack enemy bacteria (etc.) as the first response to the immune system's defense
The immune system reacts to substances as threats to the body health. When the allergens are inhaled the first response of the immune system is to attack and attempt to stop the particles from harming the body.
The difference between the first and second line of defence is that the first line of defence is your physical barrier like your skin and it protects you from most pathogens entering your body and the sweat and oil on your skin prevent some pathogens from growing on your body. the second line of defence is when a pathogen makes it past the first line of defence your body can mount an immune response to the attack and destroy the invader. Whether or not the response succeeds depends very much on your body's ability to distinguish between cells that belong to it and cells that do not.
Yes tonsil is a part of immune system. It is a first line of defence.
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).
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.
1- the immune systems helps fight off diseases 2-your skin is the first line of defense for your immune system. hope that helps!:)