Neurophysiology Question Please Help

[RollyPT]

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Hi I was wondering if anyone could help me with this question:

In early syringomyelia, destruction of the tissue occurs in the area of central canal including the anterior white commissure. Indicate (yes, no) the type of loss, if any, that will occur in the following parameters and include your rationale for your answers:

1) Pain and temperature on both sides of the body that enters at the level of the spinal cord affected; YES, anterolateral spinothalamic tract

2) Pain on the left side for fibers that enter two to three levels below the affected spinal cord

3) Temperature on the right side for fibers that enter two to three levels below the level of the spinal cord affected

4) Discriminative (fine) touch for fibers that enter at the level of the spinal cord affected;

5) Proprioception/vibration for fibers that enter two levels above the affected spinal cord;

I understand the sensory and motor pathways, but not sure how to identify where the decussation occurs and what is affected. Any help would be greatly appreciated. Thank You

 

[PTMattI]

Hi I was wondering if anyone could help me with this question:

In early syringomyelia, destruction of the tissue occurs in the area of central canal including the anterior white commissure. Indicate (yes, no) the type of loss, if any, that will occur in the following parameters and include your rationale for your answers:

1) Pain and temperature on both sides of the body that enters at the level of the spinal cord affected; YES, anterolateral spinothalamic tract

2) Pain on the left side for fibers that enter two to three levels below the affected spinal cord YES...loss should be bilateral below the level of the lesion,

3) Temperature on the right side for fibers that enter two to three levels below the level of the spinal cord affected YES...loss should be bilateral below the level of the lesion. Pain and temp run together on anterior tract.

4) Discriminative (fine) touch for fibers that enter at the level of the spinal cord affected; NO...thats on posterior tract

5) Proprioception/vibration for fibers that enter two levels above the affected spinal cord; NO...thats on posterior tract

I understand the sensory and motor pathways, but not sure how to identify where the decussation occurs and what is affected. Any help would be greatly appreciated. Thank You

2. YES...loss should be bilateral below the level of the lesion. Pain and temp run together on anterior tract.
3. YES...loss should be bilateral below the level of the lesion. Pain and temp run together on anterior tract.
4.NO...thats on posterior tract
5.NO...thats on posterior tract

 

[RollyPT]

Awesome PTMattl, thank you for your help. Do you know of any online references/animations that would be conducive to learning this material?

Thank You!

 

[PTMattI]

No, but if you PM me your email I can send you my notes on this which I think explain it very well

 

[SC.PT]

PTMattl, do you have those notes that will better explain this? Would you be able to send those to me by any chance? I am needing a little help trying to get this down also. RollyPT, how did your assignment go on this. I know it's been a long time already, but would you happen to have any notes on this also?