Figure 4
From: A new cervical nerve root avulsion model using a posterior extra-vertebral approach in rats
The rupture point of the ventral rootlets and the motor neuron death. A: The relationship between the length of the distal stump of the avulsed ventral rootlet and the survival of motor neurons. The coefficient of correlation was 0.03 (P = 0.91). B: The relationship between the ventral rootlets and subarachnoid space in the normal C6 spinal cord segment of a 9-week-old male rat. Outer borderline of the subarachnoid space was indicated by a dashed line. The black arrow indicates bifurcation between ventral and dorsal rootlets.