HLSC 2400U Lecture Notes - Lecture 4: Lateral Corticospinal Tract, Wallerian Degeneration, Polyneuropathy

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21 Jun 2018
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Neuro quiz 4
1. Reaching and grasping movements (fine control) rely on which motor pathway?
Lateral corticospinal tract and primary motor cortex
2. Which is a symptom of a peripheral nerve lesion? ALL ARE SYMPTOMS  Paresis,
paralysis, sensory loss, abnormal sensations, muscle atrophy, reduced or absent deep
tendon reflexes
3. Which of the following senses does the body preferentially utilize to regulate postural
control? Somatosensation, vision, vestibular
4. The clinical term for a patient perceiving normal stimuli as painful is? Allodynia
5. Which of the following nerve injuries will result in Wallerian degeneration? Traumatic
axonopathy
6. On a nerve conduction test, which of the following nerve disorders will present with a
delayed conduction velocity and a normal recorded potential (amplitude)?
Myelinopathies? check
7. The anterior and posterior rami join distally to create the spinal nerve at a particular
level of the spinal cord? False
8. What are the neurological deficits associated with anterior cord syndrome? Damages
spinothalamic and motor tracts. Interferes with pain and temperature sensation and
motor control
9. Spinal nerves are mixed nerves containing both sensory and motor axons. True
10. Activation of a withdrawal reflex results in? ipsilateral activation of flexor motor
neurons in response to painful stimulus
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