Figure 4
From: Alveolar epithelial type II cell: defender of the alveolus revisited
Transmission electron micrograph of rat intra-alveolar surfactant with the typical lattice-like appearance of tubular myelin, which is in close contact with the alveolar lining layer (arrowheads). Vesicular surfactant (small arrows) is seen near the apical surface of the alveolar epithelium.