PMID: 7536226Jan 3, 1995Paper

The localization of neurons innervating the carotid sinus in the dog

Journal of the Autonomic Nervous System
P Ruiz-PesiniM Yllera

Abstract

The localization of neurons innervating the carotid sinus of the dog was studied by horseradish peroxidase histochemistry following microinjection of wheat germ agglutinin-horseradish peroxidase (WGA-HRP) under the adventitia of the carotid sinus. Labeled cell bodies were found in the petrosal (198 +/- 108; mean +/- S.D.) and superior cervical ganglia (SCG) (890 +/- 354 mean +/- S.D.) supporting the existence of both a sensory afferent and a sympathetic efferent innervation of the carotid sinus. Labeled neurons in the petrosal ganglion were round pseudounipolar neurons of variable size. Labeled neurons in the SCG were multipolar and appeared distributed over the whole ganglion, but with a higher density toward its caudal half. No labeled perikarya appeared either in the brainstem or in the nodose or jugular ganglia, suggesting that in the dog a vagal pathway for carotid sinus baroreceptor afferents does not exist.

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Citations

Dec 21, 2002·Autonomic Neuroscience : Basic & Clinical·Don W WallickMarc D Thames
Jan 1, 1995·Brain Research Bulletin·P Ruiz-PesiniM Yllera
Jul 28, 2019·Journal of Anatomy·Feng-Bin WangChien-Liang Fang

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