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3 Cards in this Set
- Front
- Back
Upper Motor Neuron (UMN) Rule
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The corticobulbar tract BILATERALLY innervates LMN's
Exceptions: VII: Facial: UNILATERALLY innervates lower face on CONTRALATERAL side XI: Spinal Accessory: IPSILATERALLY innervates mm XII: Glossopharyngeal: CONTRALATERAL innervation |
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Lower Motor Neuron (LMN) Rule
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The LMN cell body in motor nucleus innervates IPSILATERALY
Exceptions: CN IV: Trochlear: innervates CONTRALATERAL |
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Visceral Motor Rule
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Preganglionic Cell body in parasympathetic nucleus in brainstem
Postganglionic cell body is in ganglion in PNS |