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23 Cards in this Set
- Front
- Back
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the spinal cord ends at what level
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L1/L1
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The anterior spinothalamic tract is an ascending afferent tract which carries what sensations to the thalamus
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light touch & pressure
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The lateral spinothalamic tract is an ascending afferent tract which carries pain & temp sensation to what part of the brain?
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thalamus
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tracts that end in spinal (such as corticospinal) originate?
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in the brain and are descending motor tracts
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the fasciculus cuneatus (posterior or dorsal column) carries what sensations from the trunk, neck, & UE to the brain?
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proprioception
vibration 2point discrimination graphesthesia |
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the fasciculus gracilis (posterior or dorsal culumn) carries what sensory information from the trunk & LE to the brain?
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proprioception
vibration 2 point discrimination graphesthesia |
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the dorsal spinocerebellar tract carries what sensory information to the cerebellum?
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ipsilateral subconscious proprioception
mm tension jt sense LE & trunk posture |
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the ventral spinocerebellar tract carries what sensory information to the cerebellum
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ipsilateral subconscious proprioception
mm tension jt sense posture of the trunk UE & LE |
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the spino-olivary tract carries what sensory information to the cerebellum
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information from cutaneous & proprioceptive organs
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the spinoreticular tract is the afferent pathway for the reticular formation that influences what?
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level of consciousness
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the spinotectal tract carries what information to the brain?
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information for spinovisual reflexes & assists w/eye & head movement towards a stimulus
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the anterior corticospinal tract is a pyrimidal motor tract responsible for
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ipsilateral voluntary, discrete, & skilled movements
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the lateral corticospinal tract is a pyrimidal motor tract responsible for
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contralateral voluntary fine movement
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the reticulospinal tract is an extrapyrimidal motor tract responsible for
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fascilitation or inhibition of voluntary & reflex activity through the influence on alpha & gamma motor neurons
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the rubrospinal tract is an extrapyrimidal motor tract responsible for
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motor input of gross postural tone,
facilitating activity of flexor mms inhibiting activity of extensor mms |
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the tectospinal tract is an extrapyrimidal motor tract responsible for
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contralateral postural mm tone associated w/auditory or visual stimuli
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the vestibulospinal tract is an extrapyrimidal motor tract responsible for
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ipsilateral fross postural adjustments subsequent to head movements
facilitating activity of the extensor mms inhibiting activity of the flexor mms |
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damage to the corticospinal (pyrimidal) tracts results in
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(+)babinski sign, absent superficial abdominal reflexes & cremasteric reflex, & loss of fine motor or skilled voluntary movement
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damage to the extrapyrimidal tracts results in
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significant paralysis
hypertonicity exaggerated deep tendon reflexes clasp knife reaction |
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The following impairments result from injury to which lobe of the brain?
-contralateral weakness -perseveration, inattention -personality changes, antisocial behavior -impaired concentration, apathy -Braca's aphasia (expressive deficits) -delayed or poor initiation -emotional lability |
frontal
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The following impairments result from injury to which lobe of the brain?
-dominant hemisphere (usually left): agraphia (can't write), alexia(loses ability to understand writing), agnosia (can't recognize common objects, people, sounds) -non-dominant hemisphere (usually right): dressing apraxia (loss of ability to perform coordinated movement), constuctional apraxia, anosognosia (lack of insight that anything is wrong with them -contralateral sensory deficits -impaired language comprehension -impaired taste |
parietal
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The following impairments result from injury to which lobe of the brain?
-learning deficits -wernicke's aphasia (receptive deficits) (inability to understand language written or spoken, can speak language but cannot be understood) -antisocial, aggressive behavior -facial recognition difficulty -memory loss/difficulty -inability to categorize objects |
temporal
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The following impairments result from injury to which lobe of the brain?
-homonymous hemianopsia (loss of visual field to the left or right of the midline in 1 or both eyes) -impaired extraocular mm movement & visual deficits -impaired color recognition -reading & writing impairment -cortical blindness w/bilateral lobe involvement |
occipital
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