Set of ten microscope slides depicting tissues from mammalian respiratory tract and circulatory system, including:. Trachea, cat, T.S. showing cartilage, ciliated epithelium. Lung, human T.S. showing alveoli, blood vessels and pleura. Blood, human, Giemsa or Wright stained smear. Artery, human, T.S., elastica stained. Vein, human, T.S., elastica stained. Artery and vein of smaller size, human, T.S., routine stained. Aorta, human, T.S. Heart muscle, human T.S. and L.S., striations, intercalated discs. Lymph gland, human, T.S. Red bone marrow, human rib, T.S. Giemsa stained. Glossary:. T.S. - Transverse Section. L.S. - Longitudinal Section. The product image shows Trachea T.S. showing cartilage, ciliated epithelium.