AQA B3 specialised exchange surfaces

Covers how the alveoli and villi are specialised for exchange- taught after my lesson on lung structure so doesn't cover breathing etc. I have included the few bits they need to know about artificial ventilators too in this lesson but it could be taken out if you wish- my resources for this are adapted from another user, thank you! Used for AQA B3 but may be applicable to other boards.

If you use my resources please rate them.