Laboratory 12 : Tract Systems I
  Somatomotor System : Pontine and Medullary Reticulospinal Tracts

Pontine (Medial) and Medullary (Lateral) Reticulospinal Tracts

It is important to note that:

  • The MEDIAL Reticulospinal Tract is somatomotor, and part of the ventromedial group.
    • This means it controls axial and proximal muscles to maintain posture.
  • The MEDIAL Reticulospinal Tract does not decussate.

 

Slide 40 : Pons & Midbrain

  • Pontine (Medial) Reticulospinal Tract begins in reticular formation of pons and remains ipsilateral.

Slide 24 : Middle Medulla Oblongata

  • Pontine (Medial) Reticulospinal Tract continues through reticular formation.

Slide 6 : C7

  • Axons pass in dorsal and medial parts of ventral funiculus.
  • Axons synapse on laminae VII and VIII.

Copyright © 2006 - University of Pennsylvania School of Veterinary Medicine, All rights reserved.
Faculty: Dr. Richard Miselis, Dr. Peter Hand
Students: Natalie Fickel V'12, Ryan Donahue V'09, Cara Catanese V’08, Rebecca Wolf V'06, Keith Javic V'03, Ken Bixel V'99, Russel Howe-Smith V'97