This set illustrates some of the parts of the body that help humans breathe. Set contains ten identical sets of eight photomicrographs, ten instruction texts, ten student worksheets and a reproducible teacher’s guide.

Elementary and middle school grades
1. Bronchial Tree – ls. – Stained
2. Windpipe – xs. – Stained (6x)
3. Lining of the Windpipe – xs. – Stained
4. Air Sacs of Lungs – xs. – Stained (130x)
5. Blood Vessels in Lungs – xs. – Stained (325x)
6. The Power Plant – Electron Microscope (60,000)
7. Healthy and Diseased Lungs – xs. –Stained (65x)
8. Lining of the Windpipe – xs. – Stained (175x)