Emu

__// 1) Write 7 most important or meaningful science words that help you to understand immunology. Give a simple definition to each word. //__
 * Word || Meaning || Example ||
 * Inflammatory Response || when you break your skin, all sorts of bacteria tries to enter through that area. Since your immune system is trying to fight off it, it creates and immediate response by making that injured area red or swelled up to protect it. ||  ||
 * Humoral Response || an action that is taken consisting of T-cells and B-cells. ||  ||
 * Lymphocytes || Memorize a specific substance (specific). ||  ||
 * Phagocytes || Kills any substances that are foreign or bad but cannot memorize. ||  ||
 * Leukocytes || A type of cell that patrols through your bloodstream. Mainly used in the second line of defense. ||  ||
 * Antibodies || A block of protein that works in your third line of defense. It kills pathogens/antibodies on its own. ||  ||
 * Enzymes || A substance that is made in parts of your body, which creates an reaction to something specific. ||  ||

__// 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?) //__ How immunology works? (Process from when an antigen/pathogen enters) Mainly, your immune system works with three main defenses against pathogens and antigens.

The defense against pathogens start with the physical barriers all around the body. Some examples such as the stomach acid provides an acidic environment for the pathogens, which are one of their disadvantages. Another example such as the mucus, traps all sorts of foreign substance to stop it from entering your body into the bloodstream. These will trap many of the pathogens, but still it is not enough to eliminate all of them.
 * First Line of Defense: Physical Barriers**

Some pathogens make through the first line of defense, and here comes the second part of the defense. There are five main types of white blood cells in this area, that patrols through your bloodstream searching and trying to detect pathogens.The five white blood cells here are...
 * Second Line of Defense: Inflammatory Response & White blood cells**
 * Basophils
 * Eosinophyls
 * Neutrophils
 * Mast cells
 * Macrophages

All of these have certain jobs they are in charge of. __**Eosinophils and Basophils**__ both take part in allergic reactions and as well as eliminating parasitic germs/cells. __**Neutrophils**__ are one of the most common types of white blood cells in our immune system, covers around 60% of the white blood cells each day in our bodies. It kills foreign substances. __**Mast cells**__ take an important job in the inflammatory response. It decreases the amount of blood flowing around the injury, to stop you from bleeding to death. __**Macrophages**__ are big killers, engulfs almost anything that are foreign and kills it before it infects the human body. Since all blood cells in this section are non-specific, it kills pathogens or any other substances that are "bad", do not target any of them specifically. The inflammatory response is when you break your skin, all sorts of bacteria tries to enter through that area. Since your immune system is trying to fight off it, it creates and immediate response by making that injured area red or swelled up to protect it.

Not many antigens/pathogens can come up to this point, has an immense sustainability. Almost all is eliminated at this point. The humoral response is an action that is taken consisting of T-cells and B-cells. Their jobs here are to create antibodies to fight of the foreign substances specifically. Antibodies are a block of protein, which groups up together to fight off one specific substance. It can either neutralize the pathogen on its own. The white blood cells in this area are... By the time this section is done, there are rarely any pathogens/antigens that can make you sick. If there are, you are most likely infected by a specific germ. Even though you might have been infected, your immune system is working trying to fight it off on its own.
 * Third Line of Defense: Humoral Response & White blood cells**
 * Macrophages (again)
 * T-cells
 * B-cells
 * Helper T-cells
 * Suppressor T-cells

Here is a list of main types of white blood cells that work for the immune system. Basophils Eosinophyls Neutrophils Monocytes Macrophages Dendritic cells Mast cells T-cells B-cells

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