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KMID : 0378019810240090085
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New Medical Journal
1981 Volume.24 No. 9 p.85 ~ p.91
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Morphological Study on the Thoracic Sympathetic Ganglia in Korean
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Abstract
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The sympathetic trunk contains a series of ganglia which correspond approximately to the spinal nerves, but the coalescence of adjacent ganglia commonly reduces the number of the chain gangila. On the determination of the sympathetic segments, there are still considerable differences as to its exact connotation among the surgeons.
In the upper thoracic region, the sympathetic segments may correspond to sympathetic ganglia but this rarely holds for the lower thoracic region. Pick and Sheehan (1946) reported the frequency, locations and rami communicantes of the thoracic sympathetic ganglia. Beginning with the stellate ganglion, the trunk continues laterally and caudally, passing in front of the necks of the second down to the ninth or tenth ribs, where it swings medially to the lateral and anterior aspects of the three lower thoracic vertebrae(Pick 1957).
The present study was investicated to observe the frequency, location, and rami communicantes of the thoracic sympathetic ganglia in 66 cadavers in Korean. The results of the study are as follows
1. The numbers of the thoracic sympathetic ganglia were 9 to 12.
2, The lengths of the ganglia were 10.17±3.71 to 12.76±3.74mm in average and the widths 5.71±2.39 to 8.37±2.52mm in average.
3. The location of the ganglia revealed the sympathetic ganglia may correspond to the vertebral level in the upper thoracic region but there are tendency to shift downward below the level of the corresponding vertebrae in the lower thoracic region.
4. The gray rami communicantes from the corresponding thoracic ganglia were more than 64.5% and the white rami communicantes were more than 53.7% in each thoracic spinal nerve.
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