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Nervous System

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Term
Definition
Acrophobia   fear of heights.  
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Afferent Neurons   sensory neurons.  
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Alges/o   sense of pain.  
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ALS   Amyotropic Lateral Scierosis  
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Anestetic   agent capable of producing a loss of sensation and usually of consciousness without loss of vital functions artificially produced.  
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Anesthetist   one trained to administer anesthetics.  
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Anxiety Disorders   any of various disorders (as panic disorder, obsessive-compulsive disorder, a phobia, or generalized anxiety disorder) in which anxiety is a predominant feature.  
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Astr/o   star  
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Ataxia   lack of muscle coordination.  
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Autism   developmental disorder appears by age 3 and is variable in expression. Recognized and diagnosed by impairment of the ability to for normal social relationships, by impairment of the ability to communicate with others, and by stereotyped behavior pattern  
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Causalgia   a constant usually burning pain that results from injury to a peripheral nerve and is often considered a type of complex regional pain syndrome.  
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Cephal/o   head  
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Cephalagia   headache  
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Clastophobia   abnormal dread of being in closed or narrow spaces.  
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Cognition   a conscious intellectual act.  
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Coma   a state of profound unconsciousness caused by disease, injury, or poison  
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Concussion   condition resulting from the stunning, damaging, or shattering effects of a hard blow.  
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CVA   Cerebravascular Accident  
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Delirium   a mental disturbance characterized by confusion, disordered speech, and hallucinations.  
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Delusion   a false belief regarding the self or persons or objects outside the self that persists despite the facts and occurs in some psychotic states.  
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Dementia   a usually progressive condition (as Alzheimer's disease) marked by the development of multiple cognitive deficits (as memory impairment, aphasia, and inability to plan and initiate complex behavior).  
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Dura Matter   the thin hard layer of bone that lines the socket of a tooth and that appears as a dense white line in radiology.  
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Dyslexia   variable often familial learning disability that involves difficulties in acquiring and processing language and that is typically manifested by a lack of proficiency in reading, spelling, and writing.  
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Echoencephalography   the use of ultrasound to examine and measure internal structures (as the ventricles) of the skull and to diagnose abnormalities and disease.  
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EEG   Electroencephalography  
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Efferent neurons   motor neurons.  
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Encephalitis   inflammation of the brain that is caused especially by infection with a virus( such as herpes simplex, varicella zoster, or West Nile virus) or less commonly by bacterial or fungal infection or autoimmune reaction.  
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Epidural Anesthesia   anesthesia produced by injection of a local anesthetic into the peridural space of the spinal cord beneath the ligamentum flavum.  
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Epilepsy   any of various disorders marked by abnormal electrical discharges in the brain and typically manifested by sudden brief episodes of altered or diminished consciousness, involuntary movements, or convulsions.  
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Esthes/o   sensation, feeling  
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Hallucination   perception of something (visual image or sound) with no external cause usually arising from a disorder of the nervous system (as in delirium tremens or in functional psychosis without known neurological disease) orin response to drugs (as LSD).  
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Hemorrhagic Stroke   stroke caused by the rupture of a blood vessel in or on the surface of the brain with bleeding into the surrounding tissue.  
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Hydrocephalus   unusual or pathological sensitivity of the skin or of a particular sense to stimulation.  
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Hypochondriasis   morbid concern about one's health especially when accompanied by delusions of physical disease.  
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Ischemic Stroke   stroke caused by the narrowing or blockage of a blood vessel supplying the brain.  
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Iaminectomy   removal of a portion of a vertebra.  
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Lethargy   abnormal drowsiness.  
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Meninges   any of the three membranes that envelop the brain and spinal cord and include the arachonoid, dura mater, and pia mater.  
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Meninges   the connective tissue membrane which covers the brain and spinal cord.  
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Meningitis   inflammation of the meninges and especially of the pia mater and the arachnoid.  
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Meningocele   a protrusion of meninges through a defect in the skull or pinal column (as in spina bifida) forming a cyst filled with cerebrospinal fluid.  
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Multiple Sclerosis   demyelinating disease marked by patches of hardened tissue in the brain or the spinal cord and associated especially with partial or complete paralysis and jerking muscle tremor.  
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Myel/o   spinal cord.  
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Myelitis   inflammation of the spinal cord or of the bone marrow.  
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Myelogram   x-ray record of the spinal cord.  
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Myelography   radiographic visualization of the spinal cord after injection of a contrast medium in to the spinal subarachnoid space.  
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Narcolepsy   a condition characterized by brief attacks of deep sleep often occurring with cataplexy and hypnagogic hallucinations.  
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Neuorrhaphy   suture a nerve back together.  
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Neuralgia   nerve pain.  
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Neurectomy   surgical removal of a nerve.  
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Neuroma   Nerve tumor  
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Neuroplasty   surgical repair of a nerve.  
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Neurotransmitters   a substance (as norepinephrine or acetylcholine) that transmits nerve impulses across a synapse.  
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Obsessive-Compulsive Disorders   anxiety disorder characterized by recurrent obsessions or compulsions or both that cause significant distress, are time-consuming or interfere with normal daily functioning, and are recognized by the individual affected as excessive or unreasonable.  
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Panic Attack   episode of intense fear or apprehension that is of sudden onset and may occur for no apparent reason or as a reaction to an identifiable triggering stimulus (as a stressful event).  
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Paresis   suffix for weakness.  
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Paresthesia   sensation of pricking, tingling, or creeping on the skin having no objective cause and usually associated with injury or irritation of a sensory nerve or nerve root.  
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Peripheral Neuropathy   disease or degeneration state (as polyneuropathy) of the peripheral nerves in which motor, sensory, or vasomotor nerve fibers may be affected and which is marked by muscle weakness and atrophy, pain, and numbness.  
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Plegia   suffix for paralysis  
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Poli/o   gray matter  
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Poliomyelitis   an infectious disease especially of young children that is caused by the polio virus.  
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PTSD   Post-Traumatic Stress Disorder  
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Schizophrenia   mental disorder characterized by loss of contact with the environment, by noticeable deterioration in the level of functioning in everyday life, and by disintegration of personality expressed as disorder of feeling, thought, perception, and behavior.  
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Sciatica   pain along the course of a sciatic nerve especially in the back of the thigh caused by compression, inflammation, or reflex mechanism.  
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Seizure   physical manifestation (as convulsions, sensory disturbances, or loss of consciousness) resulting from abnormal electrical discharge in the brain (as in epilepsy).  
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Shaken Baby Syndrome   one or more of a group of symptoms (limb paralysis, epilepsy, vision loss, or mental retardation) that tend to occur in an infant which has been severely shaken but that may also result from other actions causing internal trauma especially to the brain.  
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Syncope   loss of consciousness resulting from insufficient blood flow to the brain.  
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Thec/o   sheath  
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Trigeminal Neuralgia   an intense paroxysmal neuralgia involving one or more branches of the trigeminal nerve.  
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