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Immune System
7th Grade: Immune System
| Question | Answer |
|---|---|
| these cells are the first ones to fight invaders | phagocytes |
| stick to the pathogen so they can be quickly and easily destroyed | antibodies |
| this is where T cells and B cells are created and trained | thymus |
| these cells create antibodies | B cells |
| Send out a chemical that lets the other cells know what pathogen has invaded the body | T cells |
| After pus forms, these arrive to destroy the invaders | macrophages |
| What are the two main types of immunity? | active and passive |
| Which type of immunity only last for a short time? | passive immunity |
| What do scientists call an organism or virus that causes disease? | pathogen |
| Which type of immunity can last for years and sometimes life? | active immunity |
| What are four major types of pathogens? | bacteria, fungi, protist, virus |
| What is the name of the disease we studied that attacks the T cells of the immune system? | HIV |
| Is it possible to spread HIV by hugging someone with HIV? | no |
| Is it possible to get HIV if the blood of a person with HIV gets into your blood? | yes |
| Which body system helps destroy pathogens that enter? | immune system |
| What are three barriers that try to stop pathogens from entering the body? | skin, breathing passages, mouth/stomach |
| Can your body destroy every pathogen that enters? | No |
| Can HIV be cured? | No |
| Do people with HIV have to take medicine for the rest of their lives? | yes |