Peripheral ganglia supplying the genital smooth musculature in the female pig: An experimental study

The aim of the present study was to locate the sensory and autonomic gangli a innervating the female genital musculature in pigs. The retrograde neuron al tracers horseradish peroxidase (HRP) or fast blue (FB) were injected int o the left retractor clitoridis muscle (RCM), which was treated as a typica l model of the genital smooth musculature. Labelled cells were found in ips ilateral dorsal root ganglia S1-S4, in bilateral sympathetic paravertebral ganglia from L5-L6 or L6-L7 to S3 and in the left and right caudal mesenter ic ganglion. In two of the five animals treated, presumably preganglionic p arasympathetic cells were labelled in the ipsilateral intermediate grey sub stance of the segments S1-S2.