- Spinal Canal and Muscle–Nerve Physiology 133
Aα
motor nerve
Type Ia
sensory nerve
Extensor
*Renshaw cell
Flexor
Extensor
*Renshaw cell
Golgi
tendon
organ
Type Ib
sensory nerve
Muscle
spindle
Flexor Extensor
*The Renshaw cell lies
in the anterior horn
Type Ia
sensory nerve
Aα
motor nerve
DRAWING 8-2 Th e Muscle Stretch Refl e x