| Lawrence M. Witmer,
PhD
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The Visible Interactive Iguana. This page presents our work on the 3D anatomical structure of the head and skull of the green iguana, Iguana iguana . These resources are outgrowths of our more technical work and are intended to serve as STEM educational aids for K-12 and undergraduate students, as well as researchers. Our featured specimen is an adult green iguana (OUVC 10677) collected legally and euthanized humanely in Zoo Miami and provided to us for research and education. We scanned the head region on the OUµCT scanner in 2012 at a resolution of 90µm (0.090 mm). We imported the scan data into workstations running Avizo and digitally extracted the bones and soft tissues. The work on this project was done primarily by Alexandra Spaw Johns, an undergraduate student in Ohio University's Honors Tutorial College as part of her 2012 Summer Research Apprenticeship in WitmerLab. Lexie segmented all the structures in Avizo, generated the 3D PDFs in Deep Exploration and Adobe Acrobat, and made the movies in Adobe Premiere. She was assisted especially by Jason Bourke, as well as other WitmerLab members. More content will be added in the future.
Check out our other Visible Interactive Anatomy sites!
Some of the work
featured here has
been published:
•
Porter, W. R. and L. M. Witmer. 2015. Vascular patterns in
iguanas and other squamates: blood vessels and sites of thermal
exchange. PLOS ONE
10(10): e0139215.
doi:10.1371/journal.pone.0139215.
3D
PDF download here
. DICOM
data download for five OUVC specimens on Dryad
.
Sketchfab animations
| 3D PDFs allow anyone with even the free Acrobat
Reader to interactively manipulate the 3D models that we
generate with powerful software like Avizo. The skull
and individual bones can be spun around, isolated, made
transparent, hidden, etc. The files can even be saved to
your local computer. We provide each 3D PDF in different resolutions and files sizes to match your
interest and the power of your computer. View our mini-tutorial.
NOTE: Bugs in many browsers prevent them from running 3D PDFs in a browser window, so please save it to your system and then launch it. |
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| 3D PDF of the skull of an adult
green iguana ( Iguana iguana
: OUVC
10677) with each
bone as a separate colored object. The right side and
left side can each be turned on and off or made
transparent. Unpaired bones (e.g., frontal) are assigned
to the right side. • Download a 13 MB 3D PDF LARGEST • Download a 7.2 MB 3D PDF LARGE • Download a 4.2 MB 3D PDF MEDIUM • Download a 2.5 MB 3D PDF SMALL |
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| 3D PDF of the skull of an adult
green iguana ( Iguana iguana
: OUVC
10677) with soft tissues such as the brain endocast,
inner ear labyrinth, blood vessels, and nerves. The
right side and left side can each be turned on and off
or made transparent. Unpaired bones (e.g., frontal) are
assigned to the right side. • Download a 14 MB 3D PDF LARGEST • Download a 7.7 MB 3D PDF LARGE • Download a 4.4 MB 3D PDF MEDIUM • Download a 2.6 MB 3D PDF SMALL |
• Download a 112 MB QuickTime version (HD: 1920x1080)
• Download a 58 MB QuickTime version (1280x720)
• Download a 36 MB QuickTime version (853x480)
• Download a 26 MB QuickTime version (640x360)
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| Labeled animation of skull, brain endocast, and inner ear.
Animation of the skull of an adult green iguana ( Iguana iguana
: OUVC 10677), with labeled images of the endocast of the brain cavity, labyrinth of the inner ear, and other soft tissues. Alexandra Spaw Johns segmented the skull in Avizo, and labeled and generated the animation in Adobe Premiere. Jason Bourke assisted. (Note: the surangular-articular suture has been updated in the 3D PDFs but not the movies.) |
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Witmer is responsible for
the content of the website. Content provided here is for
educational and research purposes only, and may not be used for
any commercial purpose without the permission of L. M. Witmer
and other
relevant parties.
This project was funded by grants from the National Science Foundation . |
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| Ohio University Heritage College of Osteopathic Medicine Irvine Hall, Athens, Ohio 45701 740-593-2530 740-597-2778 fax |
Last updated:03/11/2019