Fig. 5: 3D visualization of the ACN in a 17-month-old infant.
From: Three-dimensional characteristics of the alveolar capillary network in infant and adult human lungs
a 2D section from the serial sections used for segmentation. The red labelling depicts capillaries, the yellow labelling the septal interstitium. Individual capillary profiles are marked by numbers for identification and orientation in the 3D model. The dashed lines mark the orthogonal crosshairs of the model (same location in all images (a–f)). Arrowheads with the letters b–e mark the angle from which the 3D visualization is shown in the respective images. On average, capillaries in this segmentation had a diameter of 3.73 µm and the connective tissue sheet a thickness of 3.34 µm. Scale bar = 15 µm. f Top view into the 3D model.
