The distention of the stomach causes abdominal discomfort, and the belching expels the air and relieves the discomfort. The common reasons for swallowing large amounts of air (aerophagia) are gulping food or drink too rapidly, anxiety, and carbonated beverages. People are often unaware that they are swallowing air.
For the engineering project, see Indiana Central Canal. The central canal, also known as ependymal canal, is the cerebrospinal fluid-filled space that runs longitudinally through the length of the entire spinal cord. The central canal is continuous with the ventricular system of the brain. The fourth ventricle narrows at a region called the obex to become the central canal of the spinal cord. The central canal represents the adult remainder of the central cavity of the neural tube. It generally occludes (closes off) with age.
spinal stenosis is a disorder that is caused by a narrowing of the spinal canal this narrowing happens as a result of the degeneration of both the facet joints and the intervertebral discs in this condition bone spurs also called osteophytes grow into the spinal canaltenosis may occur in the central spinal canal central stenosis where the spinal cord or cauda equina are located in the tract where the nerve root exits the central canal lateral recess stenosis or in the lateral foramen foraminal stenosis where the individual nerve roots exit out to the body