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  • Title: [Structure and localization of sympathetic neurons in the cat spinal cord].
    Author: Shabanov AN.
    Journal: Arkh Anat Gistol Embriol; 1981 Aug; 81(8):28-34. PubMed ID: 6172095.
    Abstract:
    By the method of retrograde axonal transport of horseradish peroxidase (HP) structure and localization of sympathetic neurons sending axons to the cranial cervical ganglion (CCG) have been revealed ipsilaterally in the ventral horns and in 4 nuclei of the spinal cord: nucl ILp, nucl. ILf. nucl. IC, nucl. ICpe. Orientation of the neurons, their number, structure of the nuclei formed by them, degree of the CCG efferentation by the preganglionic fibres, which run from various nuclei, are different. In nucl. ILf two types of neurons have been revealed-triangle and spindle-shaped, they always orienting by their long axis in mediolateral direction. The greatest amount of HP-positive neurons are found in nucl. ILp. They form a well distinquished compact nucleus in the lateral horns. HP-labelled neurons in nucl. ILp are found at the level of segments T1-T8 with their maximal amount at the level of segments T1-T3. HP-positive neurons are detected in nucl. ILf beginning from the segment C8 up to the middle of T4, in nucl. IC-from the segment C8 up to T6, in nucl. ICpe-from the segment C8 up to T5, in the ventral horns-from the segment T1 up to T5. In rostocaudal direction from the segment C8 up to T8 the number of HP-positive neurons is decreasing, but the part of nucl. ILp neurons in the CCG efferentation, comparing to the neurons in other sympathetic structures of the spinal cord, is increasing.
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