A comic for middle school/high school students to serve as an intro for learning the human immune system. SC135N - Society and Disease.
Texto del Guión Gráfico
Ouch! I just fell out of a tree and cut my knee. Will I be okay?
You know, Son, a lot of very cool things are happening in your body right now to heal those cuts.
Well, let me explain a little bit...
Like what?
Platelets join together to clot the bleed site.
Meanwhile, pathogen-associated molecular patterns are detected by blood and lymph cells.
Cytokines activate and go out to warn cells that pathogens are near, kind of like Paul Revere!
Cytokines tell: - Uninfected cells to reduce protein production- Infected cells to undergo self destruction-Immune cells to fight the invading pathogen
Redness, swelling, and pain begin as leukocytes and fluid fill the wound site.
Neutrophils start the fight with invaders and call for more help.
Macrophages eat and dispose of the invaders while sending the lymph nodes antigens.
Once macrophages bring antigens to the lymph nodes, the dendritic cells create a plan of attack with the T-cells and B-cells.
B
D
T
Cytotoxic (Killer) T-cells multiply and respond with force to help destroy the invading germs.
T
T
T
T
T
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The pathogen was destroyed and the cleanup process begins.
T
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As the leukocytes and other cells leave, swelling and pain goes down.
T
See you all next time!
Fibroblast cells create new blood vessels to fill in the void. This is what creates a "scab".
During the last stage of healing, a tissue called "collagen" remodels the cuts and adds durability, strength, and a scar.
And before you know it...
My knee is healed!
Thanks for the explanation, Dad! I didn't know our bodies are that cool!