Thickness (and leaves) A leaf is as thick as the width of one brick, but a wall is said to be one brick thick if it as wide as the length of a brick. Accordingly, a single-leaf wall is a half brick thickness; a wall with the simplest possible masonry transverse bond is said to be one brick thick, and so on.
Thecal sac is the layer that protects the spinal cord. It is filled with cerebrospinal Fluid and has numerous nerve roots Thecal sac is the layer that protects the spinal cord. It is filled with cerebrospinal Fluid and has numerous nerve roots. Thecal sac is enclosed in the Dura Matter. Dura matter is the outer layer which covers the central nervous system, which includes the brain and spinal cord 1. Thecal sac varies in both genders.
Spinal stenosis is a narrowing of the spinal canal, the bony structure that encloses the spinal cord and the nerve roots. MRI of Lumbar Spinal Stenosis Multiple level disc bulging and spinal canal narrowing has obstructed the flow of the clear white spinal fluid within the lower canal. Spinal stenosis usually develops gradually due to age-related spinal degeneration.