Bio Flashcards
(55 cards)
Achromatopsia
partial or complete colorblindness due to little or no function of the cone cells or damage to the occipitotemporal area
Agnosia
inability to recognize familiar objects or sounds
Akathisia
inability to sit or stand still; uncomfortable sense of restlessness
Akinesia
complete or almost complete loss of movement
Anomia
type of aphasia involving an inability to recall the names of objects
Anosognosia
failure to recognize one’s own neurological symptoms
Aphasia
disturbance in previously acquired language skills
Apraxia
inability to carry out purposeful movements despite normal muscle power and control
Asomatognosia
inability to recognize parts of one’s own body
Ataxia
incoordination, clumsiness, lack of balance
Athetosis
slow writhing involuntary movements
Bradykinesia
slowness of movement
Chorea
irregular, involuntary, rapid jerky movements, usually in the face, limbs, and trunk
Dyskinesia
abnormal muscle movement including twitchy, jerky, and writhing movements (chorea, tics, tremors)
Dysprosody
disturbance in the stress, pitch, and rhythm of speech
Parkinsonism
masklike face, hand tremor, increasing rigidity, slowed voluntary movement
Paresthesia
altered sensation in the skin that causes numbness or tingling
Tardive Dyskinesia
repetitive oral and facial grimaces, tongue movements, spasms of the neck and head, jerky movements of the limbs and trunk
Computed Tomography (CT)
Utilizes X-rays to obtain images of horizontal slices of the brain and is used to diagnose tumors, blood clots, multiple sclerosis, and other conditions. (Test of structure)
Magnetic Resonance Imaging (MRI)
Uses magnetic fields and radio waves to produce cross-sectional images of the brain. It provides clearer images than a CT scan. (structural)
Positron-Emission Tomography (PET)
The individual is injected with a radioactive tracer that is taken up by active brain cells. Provide information on regional cerebral blood flow, glucose metabolism, and oxygen consumption, which are presumed to correlate with level of neural activity. (fxal)
Left (Dominant) Hemisphere
Controls written and spoken language; verbal memory; logical, rational thought; and positive emotions.
Right (Nondominant) Hemisphere
Responsible for visual-spatial skills; creative, intuitive thought; nonverbal memory; and negative emotions.
Cushing’s disease
obesity, impaired concentration and memory