ch. 23 Flashcards
Agnosia
Loss of ability to recognize importance of sensory impressions
Agraphia
Loss of ability to express thoughts in writing
Amnesia
Loss of memory
Analgesia
Loss of pain sensation
Aphasia
Loss of power of expression by speech, writing, or signs, or loss of comprehension of spoken or written language
Apraxia
Loss of ability to perform purposeful movements in the absence of sensory or motor damage (eg. inability to use objects correctly)
Ataxia
Inability to perform coordinated movements
Athetosis
Bizarre, slow, twisting, writhing movement, resembling a snake or worm
Chorea
Sudden, rapid, jerky, purposeless movement involving limbs, trunk, or face
Clonus
Rapidly alternating involuntary contraction and relaxation of a muscle in response to sudden stretch
Coma
State of profound unconsciousness from which person cannot be aroused
Decerebrate rigidity
Arms stiffly extended, adducted, internally rotated; legs stiffly extended, plantar flexed
Decorticate rigidity
Arms adducted and flexed, wrists and fingers flexed; legs extended, internally rotated, plantar flexed
Dysarthia
Imperfect articulation of speech due to problems of muscular control resulting from central or peripheral nervous system damage
Dysphasia
Impairment in speech consisting of lack of coordination and inability to arrange words in their proper order
Extinction
Disappearance of conditioned response
Fasciculation
Rapid continuous twitching of resting muscle without movement of limb
Flaccidity
Loss of muscle tone, limp
Graphesthesia
Ability to “read” a number by having it traced on the skin
Hemiplegia
Loss of motor power (paralysis) on one side of the body, usually caused by a stroke; paralysis occurs on the side opposite the lesion
Lower motor neuron
Motor neuron in the peripheral nervous system with its nerve fiber extending out to the muscle and only its cell body in the central nervous system
Myoclonus
Rapid sudden jerk of a muscle
Nuchal rigidity
Stiffness in cervical neck area
Nystagmus
Back and forth oscillation of the eyes