Image Description: Illustration of pulmonary surfactant within the lungs. Pulmonary surfactant lowers the surface tension within the surface of the lungs so that the alveolar spaces do not collapse and allows the lungs to easily inflate. Image File Sizes: Size Pixels Inches (@300dpi) cm (@300dpi) Small 426 x 600px 1.4 x 2.0” 3.6 x 5.1cm Medium 851 x 1200px 2.8 x 4.0” 7.2 x 10.2cm Large 1382 x 1949px 4.6 x 6.5” 11.7 x 16.5cm Anatomy Visible in the Medical Illustration Includes: Pulmonary surfactant, type II alveolar cell, type I alveolar cell, alveolar space, basal lamina of alveolus, endothelial cell of pulmonary capillary, red blood cells, pulmonary capillary Image created by: Joanna Culley