Mon Prof Augmenté
Pollen and the Allergy Response
Open to everyone until Friday, October 2
To keep it, print it while it is open.
Pollen is usually harmless. In an allergy, the body treats it like an invader and releases histamine.
In the picture
- A round pollen grain drifting in the airway
- A Y-shaped antibody gripping the pollen grain
- A large cell that releases chemical droplets
- A histamine droplet moving toward a nearby vessel
Examples
- Sneezing when pollen counts are high
- Itchy, watery eyes near blooming trees
Key takeaways
- The body can mistake harmless pollen for a threat.
- Histamine causes sneezing, itching, and a runny nose.
Carry on in the app
Three questions on this lesson, to check the idea stuck. Free in the app while the lesson is in the free week.
At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.
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