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  • HEY FIREDUDE!!! What's the first thing that helps protect our bodies?
  • Well, since our skin is our outermost layer, it is also our first line of defense. This outer layer of skin is less commonly known as the epidermis. Nothing can get through it unless the skin is broken or cut. Since our skin cells eventually die, when these dead cells shed themselves from our bodies it helps to get rid of any bacteria on the skin. This is an example of a non specific defense.
  • What happens if a pathogen gets through the skin?
  • Well kiddo, a cut through the skin isn't the only way that a pathogen can enter the body. Our mucus membranes such as our nose can be pathways for them. But our nose creates mucus and has nose hairs. Which are also part of our first line defense. But if they were to get through those and get into the body then we have antibodies to come and protect next. And antibodies are a specific defense. These antibodies are created by B cells.
  • Well what about T cells?
  • OMG!!!! I forgot about T cells!!! Okay so basically, a T cell is a lymphocyte produced by the thymus gland and these help to also protect the body.  If the T cells fail then it comes down to the phagocytes to devour the alien in the body. They completely absorb the cell. If these defenses fail then the body relies on inflammation to try and stop the pathogen. And that's just how the body defends!! Stay safe kid!!!
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