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.
In this Article. Spinal stenosis is a condition, mostly in adults 50 and older, in which your spinal canal starts to narrow. This can cause pain and other problems. Your spine is made up of a series of connected bones (or âvertebraeâ) and shock-absorbing discs. It protects your spinal cord, a key part of the central nervous system that connects the brain to the body. The cord rests in the canal formed by your vertebrae.