Kalle

Kalle immunology formative test: 1) 7 most meaningful words from immunology

T cells: There is a difference between these two type of leukocytes. The T-Cells fight off and kill the pathogen that has gone to through the lines of defense in your immune system.

B-Cells: The B-Cells are the ones that reproduce antibodies and mark where the pathogen has last been spotted and then the t-cells fight them off while they are binded by the antibodies.

Antibodies: Antibodies are cells that are produced in the body, but mostly by the b-cells. Their job is to bind (or capture) a pathogen that has been spotted by the b-cells and they make it easier for the t-cells to fight the pathogens and also the antibodies make the pathogen be unable to move more around your body.

Vaccine/antigen: Vaccination is a way to prevent large diseases from occurring. It is a small disease that has been imported to your body that cannot harm you a lot and makes the body react and regenerate leukocytes (white blood cells)

Inflammatory response: Inflammatory response is when pathogens (bacteria, virus, fungi, parasites & more) harm tissues of the body and when harmed release chemicals for example histamine and many others.

Pathogens (what types there are): Pathogen is a word for mostly anything that can harm your body by the immune system or can cause a disease to you. There are 4 specific ones that are bacteria, virus, parasites & fungi.

Lymphocytes: Cells that are produced in the bone marrow what is inside of the bone.

2) What I have understood of immunology The immune system is one of the most important parts of the body that help you live. It is hard to live without it and if there would be no immune system in the human body we would have probably be extinct now because of all the diseases that are occurring. It is a large system in the body that includes lots of cells that produce certain things that the body needs. There are cells that can be harmed and cells that cells that defend pathogens from causing diseases in your body. There are 3 lines of defense that are a part of the immune system and defend the pathogens from getting through the immune system. The first line is built up of the skin that covers up the whole body, muscus (nose) where the germs get stuck in the hair there and the stomach acids. The second line is built up of lymphocytes that are produced from the bone marrow and also phagocytes. The 3rd line includes passive & immune response. The possibilities of a pathogen going through these lines is hard byt if they get to your bloodstream they start reproducing and start adding on and on. When the b-cells spot a virus in the body for example, it marks where it is because it is also a memory cell and makes antibodies that bind the pathogens and prevents them to not move. Then the t-cells that fight off pathogens and diseases kill the pathogens and also if there is one small pathogen left the antibodies can even kill it. But if there is a disease like HIV that decreases the leukocytes the body can not fight off diseases and the chances of dying are higher. Overall I think that I have understood the basics of immunology and I have still a lot of improvement to do.