Slide 1

What’s the motor system?

Plan

Motor systems

Slide 5

Slide 6

Slide 7

Organization of Movements

Organization of Movements

Reflexes

Knee Jerk

Reflexes

Why Disynaptic?

Spinal Circuits

Spinal Circuits

Motor I/O

Postural adjustments

Voluntary movements

Motor I/O

Voluntary movements

The goal of voluntary movements is represented… somewhere

Voluntary movements are
organized by motor programs

Kinematic & Dynamic Plans

Summary

Motor systems

Motor Pathways Hierarchy

Spinal Motor Columns

Ventral Horn
Organization:
Proximal - distal rule

Brain Stem Motor Paths

Brain Stem Pathways

Slide 31

Cortical
Motor
Paths

Slide 33

Slide 34

Slide 35

Why bother study the motor pathways?