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motor lectures

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ackman678
2018-06-03 14:46:48 -07:00
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motor1.md
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@@ -452,7 +452,7 @@ Note:
But the infrafusal muscle fibers are muscle-- why not just have the muscle spindle feedback and be done with it...
Need to adjust the muscle spindles so that they can provide useful feedbac across a range of muscle lengths.
Need to adjust the muscle spindles so that they can provide useful feedback across a range of muscle lengths.
Provide gain to keep muscle spindles active at all lengths.
Think about your big guns you use to hold that glass of oktoberfest... changing length of biceps
@@ -488,7 +488,7 @@ Note:
* Encapsulated afferent nerve endings located at the junction of the muscle and tendon
* Each tendon is innervated by a single sensory group Ib sensory axon
* Unlike spindle fibers, golgi tendon organs fire when muscle contracts
* Ib axons from Golgi tendon organs contact inhibitory local circuit neurons in the spinal cord (Ib inhibitory neurons) that synapse with the α motor neurons that innervate the same muscle
* Ib axons from Golgi tendon organs contact inhibitory local circuit neurons in the spinal cord (Ib inhibitory neurons) that synapse with the α motor neurons that innervate the same muscle
* Helps prevent fatigue
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@@ -563,7 +563,7 @@ V2 Glutamatergic V2a and Inhibitory V2b Ipsilaterally and caudally
V3 Excitatory Commissural Caudally
Goulding M (July 2009). "Circuits controlling vertebrate locomotion: moving in a new direction". Nature Reviews. Neuroscience. 10 (7): 507–18. doi:10.1038/nrn2608. PMC 2847453free to read. PMID 19543221.
Goulding M (July 2009). "Circuits controlling vertebrate locomotion: moving in a new direction". Nature Reviews Neuroscience. 10 (7): 507–18. doi:10.1038/nrn2608. PMC 2847453 PMID 19543221.
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