70200 Respiratory and Circulatory System. - 10 Microscope Slides - 1. Trachea, cat, t.s. 2. Lung, human t.s. 3. Blood, human, Wright stained smear 4. Artery, human, t.s., elastica stained 5. Vein, human, t.s., elastica stained 6. Artery and vein, human, t.s., elastica stained 7. Aorta, human, t.s. 8. Heart muscle, human t.s. and l.s. intercalated discs 9. Lymph gland, human, t.s. 10. Red bone marrow, human rib, t.s. Giemsa stained