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spinal_cord_tracts [2025/07/01 06:52] administradorspinal_cord_tracts [2025/07/01 06:53] (current) administrador
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 ^ No. ^ Pathway                             ^ Function                          ^ Side of Body ^ Notes ^ ^ No. ^ Pathway                             ^ Function                          ^ Side of Body ^ Notes ^
-| 1   | Anterior corticospinal tract        | Skilled movement                  | Opposite *   | Fibers cross at the anterior white commissure to synapse on alpha motor neurons or interneurons. Some fibers remain ipsilateral. Identifiable only in cervical and upper thoracic levels. | +| 1   [[Anterior corticospinal tract]]        | Skilled movement                  | Opposite *   | Fibers cross at the anterior white commissure to synapse on alpha motor neurons or interneurons. Some fibers remain ipsilateral. Identifiable only in cervical and upper thoracic levels. | 
-| 2   | Medial longitudinal fasciculus      | ?                                  | Same         | Likely involved in coordination of head, neck, and eye movements. No primary motor output defined. | +| 2   [[Medial longitudinal fasciculus]]      | ?                                  | Same         | Likely involved in coordination of head, neck, and eye movements. No primary motor output defined. | 
-| 3   | Vestibulospinal tract               | Facilitates extensor muscle tone  | Same         | Critical for posture and balance; acts on axial and extensor muscles. | +| 3   [[Vestibulospinal tract]]               | Facilitates extensor muscle tone  | Same         | Critical for posture and balance; acts on axial and extensor muscles. | 
-| 4   | Medullary (ventrolateral) reticulospinal tract | Automatic respiration?        | Same         | Involved in muscle tone and automatic movements; may contribute to respiratory rhythm. | +| 4   | Medullary (ventrolateral) [[reticulospinal tract]] | Automatic respiration?        | Same         | Involved in muscle tone and automatic movements; may contribute to respiratory rhythm. | 
-| 5   | Rubrospinal tract                   | Facilitates flexor muscle tone    | Same         | Minimal role in humans; more relevant in quadrupeds. May support fine motor adjustment. | +| 5   [[Rubrospinal tract]]                   | Facilitates flexor muscle tone    | Same         | Minimal role in humans; more relevant in quadrupeds. May support fine motor adjustment. | 
-| 6   | Lateral corticospinal (pyramidal) tract | Skilled voluntary movement     | Same         | Primary motor tract; decussates at pyramids in medulla. Controls fine distal movements. |+| 6   | Lateral corticospinal ([[pyramidal]][[tract]] | Skilled voluntary movement     | Same         | Primary motor tract; decussates at pyramids in medulla. Controls fine distal movements. |
  
 *The terminal fibers of this uncrossed tract usually cross in the anterior white commissure to synapse on alpha motor neurons or on internuncial neurons. A minority of the fibers do remain ipsilateral. Also, an anterior corticospinal tract is easily identified only in the cervical and upper thoracic regions. *The terminal fibers of this uncrossed tract usually cross in the anterior white commissure to synapse on alpha motor neurons or on internuncial neurons. A minority of the fibers do remain ipsilateral. Also, an anterior corticospinal tract is easily identified only in the cervical and upper thoracic regions.
  • spinal_cord_tracts.txt
  • Last modified: 2025/07/01 06:53
  • by administrador