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20 Cards in this Set

  • Front
  • Back
What is the very cellular area attached to the dorsal horn?
Substantia gelatinosa
What area is located below the substantia gelatinosa?
Nucleus proprius
In the Rexed Lamina, Area 9 has what sort of function?
Motor function
What type of information does the ventral white commisure allow to cross-over?
Pain information
Where do you find Clarke's Column? What does it do?
Cerebellar relay nucleus in the thoracic column.
Before lamina 1 of Rexed Lamina, there is a white matter tract called?
Tract of Lissauer
The sacral regoin has an additional nucleus called what? What does it do?
Nucleus of Onuf - controls the sphincters
What does the Nucleus of Onuf do?
Controls the sphincters
Where is RL 1 and what nucleus is associated with it?
Doral horn - Marginal Zone
Where is RL 2 and what nucleus is associated with it?
Dorsal horn - Substantia Gelatinosa
Where is RL 3,4 and what nucleus is associated with it?
Dorsal horn - Nucleus Propius
Where is RL 7 and what nucleus(2) is associated with it?
Intermediate Zone - Clarke's Column and Intermediolateral Nucleus in the thoracic spinal cord
Where is RL 9 and what nucleus is associated with it?
Ventral Horn - motor nuclei
The fasciculus gracilus receives information from the what? What type of information?
Legs - vibrations and proprioreception
The fasciculus cuneatus receives information from the what? What type of information?
Arms - vibrations and proprioreception
Why is distal, contralateral musculature only affected when you have a stroke.
Proximal musculature is innervated by both sides of the brain.
The cortical spinal tract deals with what?
Motor function
What percentage of fibers crossover in the decussation of the pyramids? Where do they end up?
80%; lateral cortical spinal tract
Where do the fibers that did not cross over in the decussation of the pyramids end up?
The ventral cortical spinal tract
What does the spinothalamic tract transmit? Do these fibers crossover? Where do they crossover?
Pain and temperature; yes; anterior white comissure