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20 terms

Ch 10 Nervous System Vocab #2

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delirium tremens
a disorder involving sudden and severe mental changes or seizures caused by abruptly stopping the use of alcohol
hypochondriasis
a condition characterized by misinterpretation of physical symptoms and fearing that one has a serious illness despite appropriate medical evaluation and reassurance
hallucination
a sensory perception (sight, touch, sound, smell, or taste) experienced in the absence of an external stimulation
delusion
a false personal belief that is maintained despite obvious proof or evidence to the contrary
facitious disorder
individual acts as if he or she has a physical or mental illness when he or she isnt not really sick.
dyslexia
a learning disability characterized by substandard reading achievement due to the inability of the brain to process symbols; also known as a developmental reading disorder
epidural anesthesia
regional anesthesia produced by injecting a local anesthetic into the epidural space of the lumbar or sacral region of the spine
electroencephalography
the process of recording the electrical activity of the brain through the use of electrodes attached to the scalp
echoencephalography
the use of ultrasound imaging to diagnose a shift in the midline structures of the brain
hyperesthesia
a condition of abnormal and excessive sensitivity to touch, pain, or other sensory stimuli
epilepsy
a chronic neurological condition characterized by recurrent episodes of seizures of varying severity.
Guillain-Barre syndrome
inflammation of the myelin sheath of peripheral nerves and is characterized by rapidly worsening muscle weakness that can lead to temporary paralysis
hemorrhagic stroke
occurs when a blood vessel in the brain leaks or ruptures; also known as a bleed
ischemic stroke
a type of stroke that occurs when the flow of blood to the brain is blocked
lethargy
a lowered level of consciousness marked by listlessness, drowsiness, and apathy
meningitis
inflammation of the meninges of the brain or spinal cord
hydrocephalus
a condition in which there is an abnormally increased amount of cerebrospinal fluid within the ventricles of the brain
dura mater
thick, tough, outermost membrane of the meninges
dementia
a slowly progressive decline in mental abilities, including memory, thinking, and judgment, that is often accompanied by personality changes
encephalitis
inflammation of the brain, can be caused by a viral infection such as rabies