Nervous Circuits
The Reverend Dr. David CM Taylor dcmt@liverpool.ac.uk
This page is © David Taylor and The University of Liverpool, 2003
Simple Circuits
Or
But complicated actions can result from simple circuits
e.g. the octopus
Of course you need something to make sure that you don’t do both things at the same time
So how about humans?
We need to distinguish between upper and lower motor neurones.
Upper motor neurones
are in the motor cortex
The descending fibres
cross in the medulla en route to the spinal cord
Lower motor neurones
are in the spinal cord - think about the knee jerk reflex
Knee jerk reflex
Monosynaptic Reflex
Simple scheme
But the control of voluntary movement involves a little more…
Overview of control
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