This respiratory system model was created from segmentations of the National Library of Medicine's Visible Human Male Cryosection Image dataset.  Segmentations were done in 3D Slicer, then a polygonal model was exported to Pixelogic ZBrush.  There is was polished, optimized and remeshed.

There are several files available for download:

1)VHM_Respiratory_Pieces.fbx contains a fully separated set of models for the entire respiratory system.  Each piece is UV mapped, but maps were generated based on a merged model (see 2)), so the same maps can be used for all models except the tracheal cartilage which has its own.  This is a low resolution model intended for use with supplied Maps (VHM_Respiratory_Maps.zip) to receive detail.  Expected results when rendered in Maya with Arnold with the displacement maps were shown in the Thumbnail and under "Extras".  This is NOT PRINT READY.  These files are in a Y-Up coordinate System

2) VHM_Respiratory_Merged.fbx contains a merged model of the respiratory system and a model of the tracheal cartilage.  These were used to generate the UV maps, normal maps and displacement maps in VHM_Respiratory_Pieces.fbx.  If you wish to add color information etc, this is a good place to start.. This is NOT PRINT READY.  These files are in a Y-Up coordinate System

3)VHM_Respiratory_Viewer.XXX contains the two models from 2) merged together.  This file was necessary for upload and processing by the 3D Print Exchange viewer and rendering system.  It is NOT PRINT READY.  Since this is coming from Blender it comes in a Z-Up coordinate System.

4)VHM_Respiratory_Print.stl and VHM_Respiratory_Print_Stand.stl are a 3D printable version of these models.  An image of this print done on the UPrint is shown in "Extras".  It was subsequently filled with Gesso and sanded to smooth the surface.

This model was created for the NLM3D Project by Kristen Browne MSC, MSCBMC.  This project has been absorbed by the Biovisualization Program in the Bioinformatics and Biological Computing Branch in the Office of Cyber Infrastructure and Computational Biology at NIAID.