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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 type of pathogen causes Hantavirus?
I think you meant what are the vectors or animal carriers. Usually wild rodents and mosquitoes.
How can you become immune to poison?
The only way one can become immune to a poison is if he/she takes very small doses (amount depending upon the poisons toxicity) and increase this amount slowly until ones system becomes familiar with the poison. This can change depending on the poison, as there are some varieties that you can not build up any sort of immunity to.
Why are viruses and eukarotic pathogens more difficult to treat than prokaryotic pathogens?
I think it's because eukaryotic pathogens are more similar to host cells. So, if there are more similarities, it is harder to treat.
What organelle works like the immune system?
The organelle that functions similarly to the immune system is the lysosome. Lysosomes contain enzymes that break down waste materials and cellular debris, acting as the cell's cleanup crew. They also play a role in defending against pathogens by digesting harmful bacteria and other foreign substances that enter the cell. This process helps maintain cellular health and prevents infections, akin to how the immune system protects the body.
My lymphocytes' value is 52 when the maximum normal is 40is this a cause for panic?
This isn't a cause for panic. These numbers are fluctuating up and down all the time depending what is going on in your body. Being sick or having a long term cold could cause these numbers to be high as well. It would be a good idea to be tested again if you are concerned.
Describe two mechanisms that operate to restore homeostasis after infection by a pathogen?
Gaben at valve
phagocyte
What are the symptoms of stainless steal poisoning?
Steel is an alloy of iron which is not toxic. The amount of chromium and manganes in a sampe of stainless steel is negligable.
When a patient's immune system becomes over reactive to a drug this is an example of?
In medicine, superinfection is an infection following a previous infection, especially when caused by microorganisms that are resistant or have become resistant to the antibiotics used earlier.
A reaction between an antibody and soluble antigen-forming lattices is called?
precipitation reaction
A type of immune response that is produced by the action of antibodies within body fluids?
humoral immunity response
Currently about 30 different blood group systems are known in humans but the ones of clinical significance are the ABO system, Rh system, Kell, MNS, Lewis etc.
The importance of blood group systems lies in transfusion and transplant medicine as we can receive blood (or organ) from only an individual whose blood group matches ours. In case of mismatch, the body's immune system recognizes the 'foreign' antigen and fights it leading to disease states.
People without Kell antigens (K0), must be transfused with blood from donors who are also K0 to prevent hemolysis (breaking down RBCs).
The K (K1) antigen (antibody) is very immunogenic and causes strong reactions in case of mismatched blood transfusion and severe fetal anemia in sensitized mothers.
It is produced only after exposure to the antigen as a result of pregnancy or repeated blood transfusions.
If the growth zone of the nail (slightly behind the cuticle) is basically OK, the nail will grow back, but it can take almost a full year before it's reached normal size and shape again.
If the growth zone is damaged, then the nail might come back deformed.
Thicker, cloudy, wavy or anything like that.
It may eventually return to normal, or it may always be strange.
If the growth zone is really badly damaged, or actually missing, the nail might not come back at all.
because antigen -antibody reaction takes place in 37 degreecentigrade(body temperature)
How do pathogens work on humans?
Depends on which pathogen ...
for example -
Viruses take over the protein building mechanisms of your cells.
Bacteria may compete for food, but most secrete toxins of various types.
Fungi will sometimes eat your cells.
When a pathogen lies dormant in its host before going active what period is it in?
This is known as the latent period. If the virus is active, not dormant, but not causing any symptoms yet, this is known as the incubation period.
Go on mozilla firefox and search a picture of lymphocyte. As simple as that.
How is the AIDS antibody used for blood screening?
Basically the test is to check for the HIV antibody and NOT the HIV virus itself.
Immunotherapy
An agranular leukocyte that destroys foreign cells by making antibodies?
lymphocyte, specifically b-cells
source: anatomy book
What happens when antibody A reacts with B plus blood?
Antibody A is anti-B. So when these react, the RBC agglutinate and hemolysis occurs. Expect acute renal failure and death.
memory responses
Which cells cause rapid division of other lymphocytes?
The activated B cell then goes through a process of rapid division (termed clonal expansion) where many more copies of the cell are made.
What is immune system mean in short?
Immune system is your body's defence against infection and unwellness. It recognises the cells that structure your body, and can attempt to get eliminate something unknown. It destroys germs (bacteria and viruses) and parasites. however this weapons system can even cause issues. it'll attack given organs or blood from another person, unless fastidiously matched. it should react to harmless invaders like spore grains, inflicting hayfever. In some cases (autoimmune diseases), the system turns against the body's own cells.
