His hands on my ribcage
 Thoracic spinal nerves study
 Spinal cord study (with rotation)
 Lumbar spinal canal (with space for spinal cord)
 Lumbar  spinal canal, with spinal cord
 Cauda equina study
 Nerves exiting spinal cord, close-up view
 His hands on my ribcage, with spinal cord & nerves
 Embracing arms (with spinal cord)
 Double hands (brown-pink)
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