For this tract there are about 10 point that you can write. ( this is as for me. if you have more then it good. the more the better). I provide a picture so you can easily imagine what the heck im writing about.
 |
| I provide extra large picture. |
Because I told you just now there are about 10 important point so there are also 10 important key point that will help you and me remember this tract
1) receptor cell bodies & first order neuron
2)dorsolateral tract of Lissauer
3)1st synapse
4)2nd order neuron cell bodies
5)2nd order neuron
6)brainstem
7)spinal leminisci
8)cell bodies of 3rd order neuron
9)2nd synapse
10)termination
There are the key point. I know you wont understand what the heck is that. Lets me write properly all the point
Firstly, you need to write about receptor cell bodies and first order neuron
- Receptor cell bodies located at dorsal root ganglion. Afferent fibres of first order neuron enter dorsal root ganglion.
- Then, first order neuron will ascend or descend 1 or 2 segment known as dorsolateral tract of Lissauer
- First order neuron will synapse with second order neuron in dorsal horn of spinal cord
-Second order neuron cell bodies located at dorsal horn of spinal cord
-Second order neuron will cross obliquely to the opposite site in the anterior gray commissure,anterior white commissure and anterolateral white column
- Then it will ascend through brainstem
lateral part to medulla oblongata
posterior part to pon
tegmentum part to midbrain
anterolateral part of spinal cord
-Both anterior and lateral spinothalamic tract with spinotectal tract will form spinal leminisci
-Cell bodies of third order neuron lies at ventral posterior lateral (VPL) nucleus of thalamus
-Second order neuron synapse with third order neuron and then fibres pass through posterior limb of internal capsule and corona radiata
-The fibres terminate at the primary somesthetic cortex
No comments:
Post a Comment