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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
What individual hypersensitivity to a substance usually antibody-antigen reaction is known as?
It is an allergy
What does starvation do to your brain?
it chages the moves and it shakes so that it gives a sign that it needs food
How are antigens and antibodies involved in the bodys response to incompatible blood?
Antibodies are usually made in response to being exposed to an antigen. If you have had measles, then you have made antibodies to that antigen. Next time you are exposed, your body will fire up the antibodies and you will defeat the antigen (measles) quickly. You may feel some thing. You might say "I am coming down with something" but it will pass quickly.
In RBC, the genetic make up of the blood gives antibodies for each type. These are already in the plasma. There are antigens on each type of RBC.
1. Type A blood has antigen A on it's surface while antibody B is in the plasma. This person can be given A and a bad reaction will not occur as there is no antibody A in the plasma.
2. Type B has antigen B and antibody A in the plasma. Type B blood can be given but not A.
3. Type O has both antigens A and B and no antibodies for A or B. Only O can be given.
4. Type AB has no antigens on it's surface and both antibodies A and B. Types O, B, A, and AB can be given.
It is always desirable to give the same blood type. However, if it is very necessary, O can be given to all other blood types. It is called the universal donor.
AB can take any other blood type and is called the universal recipient.
To further complicate things RBCs also have an Rh factor and are called Rh+.
If not they do not, they are Rh-. These also should match. However O- is the actual universal donor.
What home remedies will help boost my immune system?
Eating a handful of almonds daily will provide your daily dose of vitamin E, which is an immune strengthening antioxidant. Eating crab will also help as it contains zinc which is an ingredient for white blood cell function.
What is this black dot in your toenail?
I am a nail tech.... from my experiences, a black dot can be one of two things. 1. a deep bruise (bruises can take a few months to grow all the way out) 2. a mold or fungal infection....which should be checked by a foot doctor.
Do gingers have a better immune system?
The only thing different about gingers is their hair colour. Give them a break.
Why do the heads and tips of nails corrode at a faster rate than the bodies of the nails?
Most nails are formed by taking a wire and smashing the end into a head and cutting the tip. This physical action affects the structure of those parts of the nail and make them more susceptable to oxidation.
What is the difference between A and B antigen?
If a transfusion is needed, blood type has to be determined so that the type in the patient is the same as the blood that will be given.
There are two different types of agglutinogens, type "A" and type "B" on the surface of our red blood cells. Each type has different properties.
The ABO blood type classification system uses the presence or absence of these molecules to categorize blood into four types.
If person has type B on their cells, they will have antibodies in their blood for type A. If this person is given type A, the antigens and antibodies will react causing the blood to clot causing damage and most likely death.
What describes how the body immune system works?
white blood cells, called lymphocytes, destroy pathogens and protect against future infections
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How does the body's immune system work with a vaccine?
Vaccines take advantage of the body's immune system's way of fighting pathogens. When your body is exposed to some pathogen, which has various antigens on its surface, the immune system would start making antibody against those antigens. Normally, it would take sometime for your body to response with first exposure. Subsequence exposures would result in much more rapid response.
Vaccines work by isolating these antigens and give it to you exposing the immune system. You should not get the disease, since only the antigens are given instead of the full pathogen. Sometimes, it may be difficult to completely separate the antigens, so they weaken to pathogens to the point that they would not cause the infection in healthy individuals. These are call live attenuated vaccines. Exam of these are MMR, Varicella Vaccines, Flu mist.
What is the Use of autoclave and it's principle?
Sterilization of instruments. Heat is the usual principle employed.
What is the purpose of a blocking buffer in immunoblotting?
it is used to block the non specific antibodies.on the other hand help to assist the mono colonial antibody activity and support the attachment to susseptible substrate.
In the primary response to an antigen the first class of antibody to be secreted is?
The class of immunoglobulin to respond to the fist exposure of an antigen is immunoglobulin class M (IgM). While Immunoglobulin G (IgG) would predominate on the second exposure.
What are four ways that the body resists diseases?
1) Your skin is the first barrier.
2) Your immune system.
3) Stomach acid.
4) Blood brain barrier.
Can bacteria harm your immune system?
Some can. One thing that can happen, is that if your immune system is fighting one infection, it can leave you vulnerable to a second one. Some bacteria have been discovered to produce chemicals that destroy immune cells in order to defend themselves.
