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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 does unremarkable mean in lab results?
It means that in the doctor's opinion, that this particular aspect of the patient is normal or as would be expected for the patient's age.
What does nonspecific body defenses include?
The main response is inflamation. any skin damage causes the release of chemicals that attract white blood cells to the area. the capillary walls become more permeable and porous to allow the white blood cells as well as the defensive chemicals and fluids to enter and accumulate. the white cells surround engulf and destroy any patghogens. Blood clotting may occur to seal the damaged area.
Macrophage is a part of the non-specific immune system what does it do?
Macrophages are white blood cells that locate and phagocytize (eat) bacteria, viruses and dead or injured body cells. They also play a role in alerting the rest of the immune system to the presence of invaders. Macrophages arise from monocytes which are a type of white blood cells. When the monocytes leave the blood they become macrophages.
What is the substance in a vaccine that stimulates the immune system?
Influenza vaccines are made with either a weakened or dead version of the flu virus that you are getting the vaccination to prevent. The annual flu vaccinations in the US contain the three types of flu viruses that are most likely to be causing illness in that particular flu season, as determined by epidemiologists and virologists. The vaccines are called Live Attenuated (which means weakened) vaccines when they have active influenza viruses in them that provide immunity once your body reacts to the presence of the virus. But they are too weakened to actually make you sick. The annual flu vaccines that are administered in a nasal mist are made with LAIV (Live Attenuated Influenza Vaccine). Those flu vaccinations that are given with a needle are made with inactivated "dead" virus particles. When your immune system is alerted to the presence of these viruses, it provides an immune response that produces antibodies to prevent that type of virus from being able to make you sick in the future. See the related questions for more details about the ingredients in flu vaccines and other related information.
What are three characteristics of the adaptive immune response?
1) it is specific, 2) systemic, 3) and it has memory
During a second infection the immune system activates that were created during the first exposure.?
During a second infection, the immune system quickly activates memory cells that were generated during the first exposure to the pathogen. These memory T and B cells recognize the specific antigens of the pathogen and mount a faster and more robust immune response. This accelerated response can lead to quicker clearance of the pathogen and often results in milder symptoms or even complete prevention of illness. This phenomenon is the basis for how vaccines work, training the immune system to respond effectively to future infections.
What body parts protect you from disease?
the lymphatic system
Antibodies are proteins in the blood that fight disease. -DLW
Immunoglobulin is an antibody whose function is to provide immunity to mucoses in human body. It's produced mainly in mucosal linings and therefore it could be found in mucous secretions, such as tears and saliva.
How do phagocytes recognize foreign cells or bacteria?
Lymphocytes are part of the human body's innate immune system. Natural killer cells seek out and destroy foreign cells by distinguishing surface molecules of major histocompatibility complex class.
Can an antibody bind to two antigens?
No, because each antigen has a specific structure that makes its shape complementary to just one other antigen (just like with enzymes, which are specfic to one substrate). Consequently, your body will contain upwards of 10,000,000 different lymphocytes, each one primed to target one antigen.
Why is the inflammatory response called a general defense?
The inflammatory response is called a general defense because the response is similar regardless of the pathogen. It is a fundamental response of the body to injury and disease.
"Because the inflammatory response is the same no matter what the pathogen, it is called the body's general defense." Quoted from: Texas Science Explorer Grade 7 (textbook), published by Prentice Hall "Because the inflammatory response is the same no matter what the pathogen, it is called the body's general defense." Quoted from: Texas Science Explorer Grade 7 (textbook), published by Prentice Hall
What Organelles do Lymphocytes have?
A lymphocyte is a type of white blood cell. The major organelles that are present in lymphocytes include ribosomes, lysosomes, mitochondria, nucleus and Golgi apparatus.
What does it mean to be immune to a disease?
It Means You Cant Catch It. This Is Usually The Case If You've Already Had It As It Is Unlikely To Have It Twice
You are immune to chicken pox means you will not catch the infection. So that means you had an attack of chicken pox or you have taken chickenpox vaccine atleast two weeks back.
What medication reduces the body's normal immune response?
Immunosuppressant: An agent that can suppress or prevent the immune response. Immunosuppressants are used to prevent rejection of a transplanted organ and to treat autoimmune diseases such as psoriasis,rheumatoid arthritis, and Crohn's disease. Some treatments for cancer act as immunosuppressants.
When you experience inflammation will blood cells are fighting pathogens in your body?
When inflammation occurs, the immune system responds by sending white blood cells, such as neutrophils and macrophages, to the site of infection or injury to combat pathogens. These cells help to engulf and destroy bacteria, viruses, and other harmful entities. Additionally, inflammatory chemicals are released to increase blood flow and attract more immune cells to the area, facilitating a coordinated defense against the invaders. This process is crucial for healing, but excessive inflammation can lead to tissue damage.
What is the formal name for a sleep doctor?
A somnologist is someone who specializes in sleep disorders. They study and treatment of sleep disorders and irregularities thus the term for a doctor who studies sleep disorders would be called a somnologist.
How does the immune system respond to syphilis?
Gonorrhoeae proactively elicits Th17-driven innate responses that it can resist and concomitantly suppresses Th1/Th2-driven specific adaptive immunity that would protect the host. Blockade of TGF-β reverses this pattern of host immune responsiveness and facilitates the emergence of protective antigonococcal immunity.
How pathogens enter the body by droplet infection?
Most pathogens enter and leave the body through the digestive or respiratory tracts. Polio, dysentery, and typhoid are examples of diseases contracted by ingestion of contaminated foods or fluids. Organisms present in the saliva or nasal mucus are spread by airborne or droplet infection; fine droplets or dried particles are inhaled by others when the affected individual talks, coughs, or sneezes. Diseases such as measles, mumps, and tuberculosis are passed on in this way.
Major structures of the immune system?
The appendix is one of the most important parts of the immune system, new studies have shown that the appendix isn't a useless organ as the name suggest.
The appendix stores a sample of good bacteria to replenish your gut when ill and it also regulates and trains the immune system to recognise friend from foe
Other parts of the immune system are:
the lymphatic organs: lymph nodes, spleen, thymus, bone marrow, & tonsils
andthe lymphatic vessels & capillaries which circulate the lymph fluid around the body
-word of advice: western medicine seems to be controlled by keeping people ill and ill informed and the rules seem to be made by pharmaceutical companies
Here are a list of these companies and the profit they make by keeping you sick, doesnt it
make you sick when people lie to you?
...In the case of correct, honest health information vs lies propagated by evil profit monster businesses IT DOES!!
http://en.wikipedia.org/wiki/List_of_pharmaceutical_companies
When will a nail not grow back?
When the tissue that creates the nail has been destroyed through injury or removed accidentally or purposefully; nails will also not grow when someone has certain medical conditions or is undergoing chemotherapy.
i woul like to know some of the illnesses that cause the nails to stop growing
