A. Posterior funiculus, containing the posterior columns fasciculus gracilis (medial, afferent fibers from the leg) and fasciculus cuneatus (lateral, afferent fibers from the arm). Afferent fibers sub-serving different sensory modalities traverse the root entry zone and enter the posterior horn (B). The type of myelin changes from peripheral to central, and the myelinating cells are no longer Schwann cells, but rather oligodendrocytes. The spinal cord injury at the level of Th10 is indicated. The afferent fibers from the arm join the cord at cervical levels and lie more laterally and dorsally to the spinal cord injury. The action potentials derived from receptors in muscles, tendons, fasciae, joint capsules and skin are conveyed in the distal processes of pseudo-unipolar neurons in the spinal ganglia. The central processes of the cells, in turn, ascend in the spinal cord and terminate in the nucleus gracilis of the medulla oblongata. The impulses derived from receptors in the leg are conveyed similarly to the caudal spinal cord. But in the spinal cord the central processes are mainly destroyed at the injury site and the action potentials cannot reach the second neurons in the nucleus gracilis of the medulla oblongata (dotted lines) (B). B. Central continuation of posterior column pathways. The posterior column nuclei contain the second neurons of the afferent pathway, which project their axons to the thalamus. Due to the spinal cord injury the second neurons in the nucleus cuneatus are partly de-afferented (dotted line). C. Pictured spinal cord injury site. Soled lines are functional, dotted lines not. To understand the regeneration of the human spinal cord, induced by coordination dynamics therapy, more knowledge of the regeneration in human is needed.
Keywords:
Published on: Jun 16, 2019 Pages: 44-44
Full Text PDF
Full Text HTML
DOI: 10.17352/2455-8702.000083
CrossMark
Publons
Harvard Library HOLLIS
Search IT
Semantic Scholar
Get Citation
Base Search
Scilit
OAI-PMH
ResearchGate
Academic Microsoft
GrowKudos
Universite de Paris
UW Libraries
SJSU King Library
SJSU King Library
NUS Library
McGill
DET KGL BIBLiOTEK
JCU Discovery
Universidad De Lima
WorldCat
VU on WorldCat
PTZ: We're glad you're here. Please click "create a new query" if you are a new visitor to our website and need further information from us.
If you are already a member of our network and need to keep track of any developments regarding a question you have already submitted, click "take me to my Query."