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Immune System

This category is for questions about how our bodies identify and fight off disease, infection or pathogens through specialized cells, tissues and organs. The system that does this is called the immune system. It produces antibodies which recognize intruders and neutralizes potentially pathogenic organisms or substances.

4,548 Questions

How does the innate immune system interact with the adaptive immune system?

The complement system is a series of about 20 proteins that are involved in a cascade effect during an immune response. Complement is generally divided up into 3 pathways: classical, lectin, alternate. The classical pathway involves a complement protein binding to an antigen-antibody complex (and thus its role in adaptive immunity). Whereas in the alternate pathway, complement (C3) binds directly to the foreign cell( usaully bacteria). Thus its repsonse is non specific and therefore is also part of the innate imune system.

Why do you get blisters and cuts on the tongue?

Could be one of several reasons. Poor oral hygiene [ you must clean your tongue and gums as well as teeth]. Chronic dehydration, or a vitamin deficiency. You Doctor or Dentist can tell you more on examination.

Function of monocytes?

Monocyte: A white blood cell that has a single nucleus and can ingest (take in) foreign material. (In other words, a monocyte is thus a mononuclear phagocyte that circulates in the blood.)

Monocytes later emigrate from blood into the tissues of the body and there differentiate (evolve into) into cells called macrophages which play an important role in killing of some bacteria, protozoa, and tumor cells, release substances that stimulate other cells of the immune system, and are involved in antigen presentation.

This information was copied from:

http://www.medterms.com/script/main/art.asp?articlekey=4426

All credit for this answer should be given to www.medterms.com

What diseases are being treated with monoclonal antibodies?

Monoclonal antibodies are commonly used to fight a large number of diseases including cancer. The monoclonal antibodies fight the disease by targeting a certain antigen and recruiting the body's natural immune system to destroy the antigen-infected cells.

What is the purpose of the respiratory system and the immune system?

The primary function of the respiratory system is to absorb oxygen and eliminate carbon dioxide.

The primary function of the immune system is to prevent foreign organisms from invading the body and causing damage.

Why is an infection considered an inflammation?

An infection is not the same thing as inflammation. Inflammation is often the immune system's way of reacting to an infection, but inflammation and infection are not the same thing. I hope that is clearer.

Is theHelper T cells make and release antibodies?

no, they are produce by B cells

you can remember by thinking B= bodies

How does leukemia weaken the immune system?

Leukemia is cancer of the blood. The anibobies, which make up the immune system travel through the blood. The immune system is damaged by the cancer cells in the body, and the can start to attack healthy blood cells, further weakening the immune system.

Where are leukocytes formed?

the leukocyte or white blood cell is located in the immune system or where they may take permanent residence..some tissue.

How does antibody immunity protect the body?

They fight of bacteria and infections that are plaguing your body. Simply put, they keep you from getting sick and help you get better if you do get sick.

And also are part of ur natural defense system

What is the Role of a variable region of an antibody molecule?

Each antibody has a variable region at the top of the arms of the Y-Shaped structure of the antibody. These variable regions each have a different sequence of amino acids and therefore a different structure. This means that only specific antigens can bind to the binding sites - only those with a complementary shape. The antigen fits into the binding site by induced fit. Once the antigen has bound to the antibody it forms a highly specific antigen-antibody complex. Therefore the role of the variable region is to produce a specific binding site for each type of antigen.

What is the structure and function of antibodies?

Antibody is a Y-shaped protein on the surface of B cells that is secreted into the blood or lymph in response to an antigenic stimulus, such as a bacterium, virus, parasite, or transplanted organ, and that neutralizes the antigen by binding specifically to it; an immunoglobulin.

What does it mean lymphocytes are high?

I have 77% of Lympocytes and elevated level of uric acid.

Why is Edward Jenner important in history?

Edward Jenner was an English physician who is credited with successfully introducing the practice of vaccinating against smallpox. Jenner, apprenticed to a surgeon as a boy, studied medicine briefly in London before returning to his rural hometown to open his own medical practice (1792). Following up on local lore that said dairymaids who had contracted cowpox were immune to smallpox, Jenner decided to see if he could adapt the Turkish practice of inoculation to prevent the spread and devastation of smallpox. In May of 1796 he took a gamble and inoculated James Phipps, the 8 year-old son of a local farmer. Phipps was exposed to fluid from the pustules of a woman with cowpox. The boy contracted cowpox, and several weeks later Jenner exposed him to smallpox. Fortunately, the boy didn't contract smallpox and Jenner's theory was proved correct. After other successful trials, Jenner published his findings in Inquiry into the Cause and Effects of the Variolae Vaccinae in 1798. Jenner went on to become famous as the world embraced "vaccination," a term he coined (because vacca is Latin for cow, and vaccinia was the term for cowpox). Jenner was also an educated naturalist and horticulturist, an amateur geologist and zoologist (he was elected as a Fellow of the Royal Society for a paper on the nesting habits of the cuckoo) and a fossil hunter who discovered the bones of a plesiosaur in 1819.