Snemalna Knjiga Besedilo
- Pathogen
- Pathogen
- Innate Immune response
- Pathogens
- Gastric juice
- White blood cell
- White blood cell
- White blood cell
- Infection
- Bacteria
- Help is needed for the first line of defense! Help is needed for the first line of defense! The initial line of defense has been breached by the infections! Oh, what's going here?! Help arrived from the second line of defense! It will generally eliminate germs. If a cell is not recognized by the immune system or does not belong in the body, it will be attacked.
- Pathogen
- Antigen
- Y
- Antigen
- A virus, called a pathogen, has entered the body! The first line of defence is here to save the day! We will attack as many pathogens as we can! The body's skin, respiratory system and digestive system act as a team. What the pathogens hates is acid which oil and sweat have. The respiratory system has mucous and cilia which the pathogens get traps in. Lastly, the digestive system has gastric juice which kills the pathogens.
- /
- Y
- Pathogen
- Y
- /
- Y
- Y
- Antibody
- The innate immune response is part of the second line of defence. It's always general/nonspecific, which means it will recognize an invader and start attacking it. When there is redness and swelling on an infection, it's called inflammation. It's caused by fluid of blood being brought from the infection. Phagocytes have white blood cells which will fight infection.
- Helper T cell
- Killer T cell
- Eat the pathogens!
- Y
- Y
- Pathogen
- Y
- Y
- Y
- Y
- \
- Antigen
- /
- Y
- Y
- Antibody
- A small number of pathogens still need to be eliminated! The rest can be handled by acquired immunological response, sometimes known as the third line of defense!Pathogens will be eliminated by the acquired immune response in a certain way. A non-living material or particle is called an antigen. The antigen won't be recognized by the body.
- Acquired immune response first process is the plasma B cells. The B cell recognize the present of the antigen. Plasma B cells produce antibodies. An antibody is a substance that fight bacteria. It kills and prevent bacteria from growing. It will attract phagocytes and tell them to eat the pathogens/antigen.
- Y
- The 2 types of T cells called the helper T cells and the killer T cell. The helper T cells activates the plasma B cells and recognize and antigen/pathogen. The killer T cells destroy antigens and pathogens directly. When an antibodies kills an antigen /pathogen, there will be some antibodies for future infections, called the immunity. The memory B cells store copies of antibodies that's produced by the plasma B cells/active the immunity.
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