Glossary of terms used on this site
There are 201 entries in this glossary.| Term | Definition | 
|---|---|
| Cerebral Cortex | 
								
					 Surface layer of gray matter of the cerebrum that functions chiefly in coordination of higher nervous activity; called also pallium.  | 
				
| Cerebral Palsy | 
								
					 Disability resulting from damage to the brain before or during birth and outwardly manifested by muscular incoordination and speech disturbances.  | 
				
| Cerebrospinal Fluid | 
								
					 Water-like fluid produced in the brain that circulates and protects the brain and spinal cord, known as CSF.  | 
				
| Cerebrum | 
								
					 An enlarged portion of the brain, located in the front and upward area, which consists of cerebral hemispheres that control conscious movement, sensation and thought.  | 
				
| Cererebral | 
								
					 Relating to the brain or intellect.  | 
				
| Cervical | 
								
					 The neck region of the spine containing the first seven vertebrae.  | 
				
| Chemonucleolysis | 
								
					 A treatment of an intervertebral disc that consists of an injection of chymopapain, a drug that dissolves part of the disc.  | 
				
| Choroid Plexus | 
								
					 A vascular portion of the brain in the ventricles that secretes cerebrospinal fluid.  | 
				
| Clinical Studies | 
								
					 A process of strictly controlled evaluations involving patients. Some of these studies are required by the FDA prior to general release of a device or compound for use in humans.  | 
				
| Cobalt-Chrome | 
								
					 A term that is used in referring to cobalt-chromium-molybdenum alloy, a mixture of metals used in many surgical implants.  | 
				
| Coccyx | 
								
					 The region of the spine below the sacrum. It is also known as the tailbone.  | 
				
| Collagen | 
								
					 A fibrous protein which is a major constituent of connective tissue. Such as skin, tendons, ligaments, cartilage, and bones.  | 
				
| Comminuted Fracture | 
								
					 A fracture in which a bone is broken into more than two pieces. Often internal or external fixation devices are used to maintain proper alignment of the fragments.  | 
				
| Concussion | 
								
					 A disruption that results from the stunning, damaging, or shattering effects of a hard blow.  | 
				
| Contrast Mediu | 
								
					 A material used during a radiologic procedure to define a structure.  | 
				
| Cortex | 
								
					 The outer layer of gray matter covering the hemispheres of the cerebrum and cerebellum.  | 
				
| Craniostenosis | 
								
					 Premature closure of cranial sutures, limiting or distorting the growth of the skull.  | 
				
| Cranium | 
								
					 The part of the skull that encases the brain.  | 
				
| CT | 
								
					 (Computed Tomography) A computer enhanced x-ray study to detect structural abnormalities. A three-dimensional map of soft tissue or bone is imaged.  | 
				
| Cytology | 
								
					 Study of cells.  | 
				
| De-mineralized Bone | 
								
					 Bone tissue which has been depleted of its minerals; e.g., calcium and phosphorous.  | 
				
| Deep Brain Stimulation | 
								
					 A tremor control therapy for patients with Parkinson's Disease or essential tremors, who do not respond effectively to medications. It is a surgical reversible procedure that involves implanting a device to deliver mild electrical stimulation to block the brain signals that cause tremor.  | 
				
| Dendrite | 
								
					 A nerve cell process that transmits impulses toward the cell body.  | 
				
| Disc (Intervertebral) | 
								
					 The tough, elastic structure that is between the bodies of spinal vertebrae. The disc consists of an outer annulus fibrosus enclosing an inner nucleuspulposus.  | 
				
| Disc Degeneration | 
								
					 The loss of the structural and functional integrity of the disc.  | 
				
| Discectomy | 
								
					 Surgical removal of part or all of an intervertebral disc.  | 
				
| Distal | 
								
					 Situated away from the center of the body.  | 
				
| Endogenous | 
								
					 Arising within or derived from the body.  | 
				
| Endoscope | 
								
					 A medical device for viewing internal portions of the body. It is usually comprised of fiber optic tube sand video display instruments.  | 
				
| Endoscopy | 
								
					 Inspection of internal body structures or cavities using an endoscope.  | 
				

 Glossary of Terms