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  • Title: [Features of individual sympathetic preganglionic neurons and their axons in the superior thoracic portion of the spinal cord].
    Author: Lebedev VP, Petrov VI, Basova AD.
    Journal: Fiziol Zh SSSR Im I M Sechenova; 1976 Oct; 62(10):1433-42. PubMed ID: 1017509.
    Abstract:
    The existence of B- and C-preganglionic fibers in T3 spinal cord segment was shown with the aid of recording the antidromic waves in the ventral root filaments elicited by corresponding white ramus stimulation. Conduction velocity, excitability, and refractory period of these fibers were obtained. Antidromic discharges of sympathetic preganglionic neurons with high-speed B-axons were found in ventral horn. Sympathetic preganglionic neurons of the lateral horn have B-axons with slower conduction velocity, and those situated in lateral part of the intermediate zone have C-axons.
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