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Glossary
 

C

cauda equina - a bundle of spinal nerve roots arising from the end of the spinal cord, which appears like a horsetail, and fills the lover aspect of the spinal canal

cauda equina syndrome - a rare disorder affecting the bundle of nerve roots (cauda equina) at the lower (lumbar) end of the spinal cord

cartilage - a smooth material that covers bone ends of a joint to cushion the bone and allow the joint to move easily without pain

cervical spine - of or pertaining to the neck or region of the neck

chronic - a disorder or disease developing slowly and persisting for six months or longer

coccyx - the region of the spine just below the sacrum, also known as the tailbone

computed tomography (CT or CAT scan) - a noninvasive procedure that takes cross-sectional images of the brain and other internal organs; to detect any abnormalities that may not show up on an ordinary x-ray

contusion - a bruise caused by a blow to the muscle, tendon, or ligament caused when blood pools around the injury and discolors the skin

 
D

decompression - a procedure involving surgical excision of bone to relieve nerve root pressure caused either by bone or soft tissue such as a disc

degenerative disc disease - a normal wear-and-tear process of the spine which occurs after multiple annular tears have developed, resulting in the nucleus pulposus drying out and losing ability to function as a shock absorber

dermatomes - a dermatome is the area of skin supplied by nerves originating from a single spinal nerve root

discectomy - a procedure involving surgical excision of the nucleus pulposus which has pushed or broken through the outer rings of the disc

dural tear - when there is a nick or small tear in the dura, which is one of the three tube like coverings which protect the spinal cord

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