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Krembil Neuroscience Centre (KNC)
A to Z Glossary - D
Overview List of Clinics A - Z Glossary Maps and Directions KNC Team Information for Health Professionals Research Initiatives and Innovations Media Room
This is not an exhaustive list, but includes some of the terminology commonly used in the assessment and treatment of neurological disorders. To view this glossary simply click on the corresponding letter below:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Dementia
Acquired and sustained loss of memory and other intellectual functions that interferes with daily functioning
Disc (Intervertebral)
The tough, elastic structure that is between the bodies of Spine vertebrae. The disc consists of an outer annulus fibrosus enclosing an inner nucleus pulposus.
Disc Degeneration
The loss of the structural and functional integrity of the disc.
Discectomy
Surgical removal of part or all of an intervertebral disc.
Disc herniation/
Herniated nucleus pulposus (HNP)
A disruption in the exterior portion of the disc (annulus) that allows part or all of the nucleus to leak out.
Dizziness
Dizziness is a general term that describes a number of symptoms such as lightheadedness, giddiness or a feeling of uncertainty about the environment.
Dysphagia
Difficulty swallowing
Dyskinesia
A medical condition in which a person makes involuntary movements
Dysphagia
Difficulty in swallowing. This symptom usually indicates tumors involving the lower brain stem/cranial nerves.
Dysphasia
Impaired speech with difficulty or inability to put words in their proper order. A symptom that may occur with tumors located in the dominant cerebral hemisphere, particularly the temporal and parietal lobe.
Dystonia
An involuntary muscle contraction causing sustained twisted or abnormal posture.
