Chapter 65--Asessment of Neurologic Function

agnosia
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Terms in this set (18)
agnosia
-loss of ability to recognize objects through a particular sensory system
-may be visual, auditory, or tactile
ataxia
inability to coordinate muscle movements, resulting in difficulty in walking, talking, and performing self-care activities
autonomic nervous system
division of the nervous system that regulates the involuntary body functions
axon
portion of the neuron that conducts impulses away from the cell body
Babinski reflex (sign)
-a reflex action of the toes
-in adults is indicative of abnormalities in the motor control pathways leading from the cerebral cortex
clonus
-abnormal movement marked by alternating contraction and relaxation of a muscle occurring in rapid succession
delirium
transient loss of intellectual function, usually due to systemic problems
dendrite
portion of the neuron that conducts impulses toward the cell body
flaccidity
-displaying lack of muscle tone
-limp, floppy
parasympathetic nervous system
division of the ANS primarily during non-stressful conditions, controlling mostly visceral functions
photophobiasensitivity to lightposition (postural) sense-awareness of position of parts of the body without looking at them -also referred to as proprioceptionreflexan automatic response to stimulirigidityincrease in muscle tone at rest characterized by increased resistance to passive stretchRomberg test-test for cerebellar dysfunction that can be odne with the pt seated or standing -inability to maintain position for 20 seconds is a positive testspasticitysustained increase in tension of a muscle when it is passively lengthened or stretchedSNS-division of the ANS with predominantly excitatory responses -the "fight-or-flight" systemvertigoillusion of movement in which the individual or the surroundings are sense as moving