← Motor systems Test
5 Written Questions
5 Matching Questions
- Lateral corticospinal and Rubrospinal tracts
- Brown-Sequard syndrome
- supplementary cortex and premotor cortex
- Amyotrophic lateral sclerosis
- a This results from hemisection of the spinal cord as seen in fracture dislocation of vertebrae, tumor. Results in a dissociation of function between conscious proprioception and pain and temperature sensation
- b This is caused by an intestinal RNA virus acquired generally from contaminated water
- c What are the important motor association areas?
- d Progressive degenerative disease of the corticospinal tract (upper motor neuron) and ventral horn cells (lower motor neuron) Lower neurons degeneration in the cervical cord results in weakness and eventually loss of control in muscle of the hand, truck and lower limbs. Involuntary twitching occurs and bladder and bowel function are impaired due to descending autonomic pathways
- e Name the lateral motor system pathways
5 Multiple Choice Questions
- These participate in important feedback loop in which they project back to the cerebral cortex via the thalamus
- Projections of the basal ganglia and the descending spinal pathways are considered to be what?
- Which of the three groups does the pyramidal tract fall into
- Cardinal sign is flaccid paralysis. Also fasciculations or fibrillations may also be present
- What are the classifications of descending motor pathways
5 True/False Questions
corticospinal tract (body) and corticobulbar → These participate in important feedback loop in which they project back to the cerebral cortex via the thalamus
cerebellum → Execution of learned, skilled motor movement, proper timing of movement, and correction of movement errors are all basic functions of what?
effects of polio → Anterior horn cells of the spinal cord are often affected. Most common area involved is the lumbar enlargement. The patient will present with classic LMN signs
Lateral corticospinal tract, medial lemniscus pathway, and anterolateral pathways → Name the medial motor system pathways
pyramidal tract lesion → This is rarely seen because in most areas of the brain, the corticospinal tract and descending spinal tracts run together. Signs include flaccid paralysis with Babinski sign.