What is an example of a specific defense?
What is an example of a specific defense?
It may be a toxin (injected into the blood by the sting of an insect, for example), a part of the protein coat of a virus, or a molecule unique to the plasma membranes of bacteria, protozoa, pollen, or other foreign cells.
What are specific defenses of your immune system?
The innate immune system provides this kind of nonspecific protection through a number of defense mechanisms, which include physical barriers such as the skin, chemical barriers such as antimicrobial proteins that harm or destroy invaders, and cells that attack foreign cells and body cells harbouring infectious agents.
Which lines of defense are specific and which are non-specific?
The Innate vs. Adaptive Immune Response
| Line of Defense | Examples | |
|---|---|---|
| Innate (non-specific) | First | Skin, hair, cough, mucous membranes, phagocytes, granulocytes |
| Adaptive (specific) | Second | Pus, swelling, redness, pain, T and B lymphocyte response |
What are the 1st second and 2nd lines of defense?
The first line of defense against infection are the surface barriers that prevent the entry of pathogens into the body. The second line of defense are the non-specific phagocytes and other internal mechanisms that comprise innate immunity.
What is a specific defense?
Specific defense: the adaptive immune system. When pathogens are able to bypass innate immune defenses, the adaptive immune system is activated. Cells that belong in the body carry specific markers that identify them as “self” and tell the immune system not to attack them.
What are specific defenses definition?
Specific Defense. Specific defense (sometimes called adaptive immunity) recognizes and coordinates attacks against specific pathogens. The system can also remember pathogens and produce a powerful response the next time a pathogen enters the body.
Which of the following is a specific defense in the body?
These are body defenses that are general against any type of pathogen. They include the skin, mucous membranes, stomach acid, resident microbes, and inflammatory response. You just studied 98 terms!
What is a specific defense against infection?
Natural barriers include the skin, mucous membranes, tears, earwax, mucus, and stomach acid. Also, the normal flow of urine washes out microorganisms that enter the urinary tract.
Which is an example of a specific line of defense against an infectious agent?
Natural barriers include the skin, mucous membranes, tears, earwax, mucus, and stomach acid. Also, the normal flow of urine washes out microorganisms that enter the urinary tract. to identify and eliminate organisms that get through the body’s natural barriers.
What is 3rd line of defense?
The third line of defense is immune cells that target specific antigens. The immune cells that play a role in the third line of defense are B-cells and T-cells, both are white blood cells. The B-cells produce antibodies. The T-cells help identify pathogenic cells and destroy targeted cells.
What is the 3rd line of defense immune system?
The third line of defense is specific resistance. This system relies on antigens, which are specific substances found in foreign microbes. Most antigens are proteins that serve as the stimulus to produce an immune response. The term “antigen” comes from ANTI-body GENerating substances.
How do specific defenses work?
