Some of the terms commonly used to describe the condition include herniated disc, prolapsed disc, ruptured disc, and the misleading expression "slipped disc." Other terms that are closely related include disc protrusion, bulging disc, pinched nerve, sciatica, disc disease, disc degeneration, degenerative disc disease, and black disc.
The popular term "slipped disc" is quite misleading, as an intervertebral disc, being tightly sandwiched between two vertebrae, cannot actually "slip," "slide," or even get "out of place." The disc is actually grown together with the adjacent vertebrae and can be squeezed, stretched, and twisted, all in small degrees. It can also be torn, ripped, herniated, and degenerated, but it cannot "slip."
The spelling "disc" is based on the Latin root discus. Most English language publications use the spelling "disc" more often than "disk." Nomina Anatomica designates the structures as "disci intervertebrales" [plural form] and Terminologia Anatomica as "discus intervertebralis/Intervertebral disc," [singular form]. [1] |