Joseph

Joseph

Once in, find your page by looking for your name in either 7A_Immunity or 7B_Immunity. In your page: 1) Write 7 most important or meaningful science words that help you to understand immunology. Give a simple definition to each words.

-Antibodies: Antibodies are tiny protein molecules produced by B cells. They are used to mark pathogens and can sometimes neutralize them on their own.

-Phagocytes: Phagocytes are leukocytes that are known as big eaters. They engulf any pathogen that enters the body also known as phagocytosis.

-Lymphocytes:Lymphocytes are produced in the bone marrow. They consists of two different cells T cells and B cells.

-Antigen: Antigens are any foreign microorganism that triggers the production of antibodies.

-Inflammation: Inflammation happens when pathogens enter the body through a wound. It keeps the pathogens contained and in place.

-Fevers: The fever is a part of the immune response. It is used to slow down the production rate of pathogens.

-Virus: The virus is a pathogen. It can harm any microorganism including bacteria and plants.

2) In 30 minutes, showcase/demonstrate your best or deepest understanding of immunology, with explanation; begin with a question or title (e.g. how __ works?) __

You may use cacoo, bubbl.us or audio recording. SAVE periodically.

** My understanding of immunology. **
The immune system is a network of organs,tissues and cells that defend your body against invading pathogens (parasites,virus,bacteria,fungus) on a daily basis without you knowing. The first line of defense against pathogens is your bodies skin, mucous and stomach acids which is non-specific meaning it does not kill anything specific. Skin acts as a protective barrier, mucus traps pathogens from entering your nose and eyes, and stomach acids destroy pathogens that live on your food that you consume. The second line of defense is also non-specific.It consists of a immune responses inflammation and phagocytosis. Inflammation happens when you get a wound and swells to contain the breach. Phagocytosis is the process of a phagocyte engulfing a pathogen. Phagocytosis starts when a the phagocyte attaches itself to the bacteria (pathogen). The phagocyte then engulfs the bacteria bringing the pathogen into the phagosome. The phagosome is like a small pouch inside the phagocyte where the bacteria is digested. The phagocyte then releases small bubble like things that breaks down the bacteria and kills it. The third line of defense is specific it uses T cells and B cells. Lymphocytes are produced in the bone marrow if they do not migrate to the thymus they turn into a b cells. but if they do migrate to the thymus they turn into T cells. B cells are producers of antibodies which are used to mark a pathogens and sometimes neutralizes them. When a pathogen is marked with a antibody T cells or phagocytes quickly eliminate/engulf the marked pathogen. These group of cells mark and kill a specific pathogens. After they have fought the illness there would be antibodies still left incase the same pathogens enter the body your immune system will know how to fight it.