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Chapter 14

Chapter 14 Glossary

Actigraphy Testing Measures the movement of a limb; the term actigraphy refers to methods utilizing miniaturized sensors translating physical motion into numeric presentation
Anastomosis A surgical connection between two (usually hollow) structures
Chemodenervation An interruption of messages sent between nerves and muscles by administration of chemical substance
Chemonucleolysis Injection of an enzyme to dissolve the gelatinous cushioning material in an intervertebral dis
Cranioplasty Surgical repair of a defect or deformity of a skull
Decompression When referring to nerves of the spine: Freeing of a pinched nerve, for instance from between adjacent vertebrae
Encephalocele (Cephalocele, Menigoencephalocele) Rare disorder in which the bones of the skull do not close completely, creating a gap through which cerebral spinal fluid, brain tissue and the meninges can protrude into a sac-like formation
Fossa Any one of three hollows (anterior, middle, and posterior) in the base of the cranium for the lobes of the brain
F-Wave A voltage change observed after electrical stimulation is applied to the skin surface above the distal region of a nerve; often used to measure nerve conduction velocity
H-Reflex (Hoffman reflex) A reflectory reaction of muscles after electrical stimulation of sensory fibers in their innervating nerves (for example, those located behind the knee)
Ligation To tie off
Meninges Collective name for the membranes enveloping the central nervous system. The meninges consist of three layers: the dura mater, the arachnoid mater, and the pia mater. Its primary function (along with cerebrospinal fluid) to protect the brain and spinal co
Meningocele Protrusion through a bone defect in the vertebrae column, of the meninges covering the spinal cord
Myelomeningocele A birth defect in which the backbone and the spinal canal do not close before birth; a type of spina bifida (a developmental birth defect caused by incomplete closure of the embryonic neural tube). The spinal cord and the meninges protrude
Neuorlytic Agent Agent used to destroy nerves; for instance alcohol, phenol, etc
Osteomyelitis An acute or chronic bone infection
Spinal tap Spinal puncture (CPT 62270-62272); a procedure to withdraw cerebrospinal fluid
Stereotactic Head Frame A guiding device, positions the head for precise treatment during stereotactic radiosurgery
Tentorium Cerebelli (Cerebellar Tentorium) An extension of the dura mater, separates the cerebrum from the cerebellum
Transection To divide by cutting transversely, a cross section along a long axis
Trephination (Treppanning, Trephining, Burr Hole) Drilling a hole in the skull to expose to dura matter
Vasospasm A condition in which the blood vessels spasm, leading to vasoconstriction and possible stroke or other injury; may arise in the context if subarachnoid hemmorrhage
Zygapophyseal Joint (Z Joint, Paravertebral Facet Joint, Facet Joint) Located on the posterior spine on each side of the vertebrae where it overlaps the neighboring vertebrae; the fact joints provide stability and give the spine the ability to bend and twist. They are made up of two surfaces of the adjacent vertebrae that a
Created by: BBracha