Immune system
The immune system is a set of structures and processes that help protect against disease. It keeps you alive and healthy and it causes symptoms such as fever, swelling, and runny nose. It involves nervous tissue which tells the body to respond to diseases. Pathogens are microbes that attack your body and cause disease. Your body fights these with lymphocytes, specifically killer T cells. Lymph nodes also can remove pathogens. Bone marrow can produce these disease fighting lymphocytes. Your immune response is how your body reacts when infected with a pathogen. There are 2 steps of processes, adaptive acquired and innate non- specific. Innate is when immediate responses are initiated within seconds. It also targets groups of pathogens and has no memory. Adaptive is a gradual response that is generated over 3-4 days. It targets specific pathogens and has a memory.
This video explains the steps your body takes to cure infections.
"A culture is like an immune system. It operates through the laws of systems, just like a body. If a body has an infection, the immune system deals with it. Similarly, a group enforces its norms, either actively or passively."~ Henry Cloud- an American psychologist Diseases:SCID- This is an immune system disorder which is hereditary. The cause of it is a series of genetic abnormalities, particularly of the X chromosome. Several types of recurrent infections are common in people suffering from SCID. Besides this, they are also prone to contract meningitis, pneumonia, measles, chickenpox, oral candida, cold sores, blood disorders, etc.
AIDS- This is a serious immune system failure and a leading cause of death worldwide. AIDS occurs in the later stages of progression of HIV, and causes the immune system of the body to collapse completely, after slowly failing. AIDS is considered as a life-threatening, sexually transmitted disease, where it can be transmitted through physical contact, blood transfusion, sharing of needles, and anything like that. Chances of survival in AIDS patients are negligible, if diagnosed in later stages. The immune system related symptoms for AIDS range from the common cold and flu, to serious ones like pneumonia and cancer. Allergies- Allergies can be defined as an aggravated immune system response to a normally harmless substance. There are a myriad allergens such as pollen grains, mold spores, latex rubber, and certain food items like peanuts or drugs like penicillin which can cause allergies. In many cases, there is more than one allergen responsible for inducing an allergic reaction. While allergy symptoms are often a mild consequence, medical intervention is advised to diagnose the underlying problem. |
How to get infected:1) pathogen breaches skin
2) bacteria grows and multiplies 3)macrophages eats and kills bacteria, call for help, and cause inflammation A. neutrophil come from the blood and kill both healthy human cells and pathogens B. centric cells activated by microphones decide what type of infection you have, and tell the helper T cells in your lymph nodes 4) helper T cells are then activated and multiply A. go and fight B. make memory helper T cells adaptive immunity C. activate B cells 5) B cells make antibodies that attach to pathogens and make memory B cells A. antibodies allow macrophages and killer T cells to easily destroy pathogens "About 20 per cent of the population believe themselves to have a food allergy and only about five per cent actually do."~ John Warner- an American politician Image one: This image is showing on all of the signs/symptoms of aids.
Image two: This image shows all of the different effects allergies will take on your body. Image three: This image compares a normal immune system to one with SCID and how it can't fight infection. |