A receptionist is an employee who typically works at a larger company. He or she normally is the first person a visitor or customer may encounter at the site. Receptionists typically screen incoming phone calls, while taking and distributing messages to appropriate parties.
A retrolisthesis is an acute, degenerative, or congenital condition in which a vertebra in the spine becomes displaced and moves backward. In most cases, retrolisthesis occurs when a soft disc that separates and cushions vertebrae either deteriorates or ruptures.
A lumbar puncture (LP) is the insertion of a needle into the fluid within the spinal canal. It is termed a lumbar puncture because the needle goes into the lumbar portion (the small) of the back. Other names for a lumbar puncture (an LP) include spinal tap, spinal puncture, thecal puncture, and rachiocentesis.