The spinal canal is formed by the vertebral arches and the dorsal surfaces of the vertebral bodies, and forms the canal within the vertebral column.
Clinical relevance
A pathological narrowing of the spinal canal is referred to as Spinal canal stenosis and is one of the most common neurosurgical conditions.
Figure
EnlargeSchematic illustration of the spinal canal (marked in red). Illustration adapted from Gray's Anatomy, Figure 94, which depicts the fifth lumbar vertebra.
Imaging
EnlargeAppearance of the spinal canal on an axial T2-weighted MRI image of the lumbar spine.
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