Fig. 2.

Dendritic branching pattern of premotor cardioinhibitory vagal neurons located within the nucleus ambiguus from 6 intact (sham-operated) and 6 T₅X rats was analyzed 28 days after T₅X or sham transection, using the Sholl analysis of dendritic branching. A: a series of concentric rings calibrated at 10-μm intervals were superimposed on each neuron and centered on the cell body. B: no. of dendritic intersections within each concentric ring was counted, and the dendritic length was measured. The mean no. of intersections per neuron at each point (with the exception of the tails) was significantly increased in rats with midthoracic T₅X. *P ≤ 0.05, intact vs. T₅X.