Vertebral Stacking Blocks

These vertebral stacking blocks fit together to form a three-quarter size spine model. See here for assembly video: https://youtu.be/z6MckyVLsLw

This model is designed as an interactive way to learn basic spinal anatomy. It is not suitable for young children. If you are looking for a more robust display model, you might consider this design: https://www.thingiverse.com/thing:4863003. If you are looking for a full-size model with more biomechanically accurate movement, you might consider this design: https://www.thingiverse.com/thing:4801717

With the exception of C1 and C2, vertebrae are numbered on the posterior aspect of the vertebral body. The numbers are to assist with assembly and are hidden in the final assembled model. There was only space for numbers, so you’ll have to learn what C1 and C2 look like and be able to differentiate between cervical, thoracic and lumbar vertebrae. (It’s not that hard!)

Every effort has been made to maintain anatomical accuracy; however some small modifications were necessary to optimize the files for printing. In particular, the bone around the transverse foramen in the cervical spine, and the articular processes and lamina of the cervical and upper thoracic vertebrae have been thickened.

Anatomically, the odontoid process of the C2 axis is held in place by the transverse ligament of the C1 atlas. In this model, the transverse ligament has been “ossified” leaving a hole for the odontoid process to click into place. This hole…