The spine is commonly called the backbone. It is a series of bones called vertebrae.
A foramen is an opening or passageway. For this purpose it is an opening in or between bones that allows passage of nerve fibers.
The spinal canal is a series of openings in bone through which the spinal cord and nerve roots pass.
The spinal cord is the main bundle of nerve tissue that passes through the spinal canal, connecting brain and body. It is part of the central nervous system.
Nerve roots branch off the spinal cord in pairs and exit the spinal canal to the right and left through small openings between the vertebrae. This is the dividing line between the central and peripheral nervous systems.
Stenosis is a general term that means narrowing.
Spinal stenosis is narrowing which occurs any place along the spine where nerves pass through the canal or out to the body.
Central canal stenosis refers to narrowing of the spinal cord (or cauda equina of the lumbar spine).
Lateral stenosis is narrowing in the tract where the nerve root exits the central canal.
Neural stenosis or neural foraminal stenosis is a narrowing of the opening between the vertebrae where individual nerve roots pass from the spinal cord to the rest of the body.
Copyright 1994-2017MedHelp International.All rights reserved. MedHelp is a division of Aptus Health.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.