11-16mm
The spinal canal is usually more than 0.5 in (12 mm) in diameter. A smaller diameter indicates stenosis. The diameter of the cervical spine ranges is 0.6-1 in (15-12 mm). Any opening under 0.5 in (13 mm)in diameter is considered evidence of stenosis.
The central, or Haversian, canal. The canal runs through the core of each osteon.
what is the function for central canal
Cervical Spinal Stenosis is the narrowing of the spinal canal in the neck. The spinal canal is an open area in the bones that make up the spinal column.
cervical
internal OS
cervical curvature
It means the canal and foramina are normal in size and allows for nerves to pass through freely without restriction.
what ismoderate central canal narrowing
This means that the openings in the canal and foramina are normal in size, thus there is no restrictions that would cause any nerve problems.
cervical canal, then the vagina.
The opening at the lower end of the uterus is the internal cervical os. It leads to the cervical canal, through the exernal os, and into the vagina.