Ascending and descending projections of the lateral vestibular nucleus in the rat

Timea Bácskai, G. Székely, C. Matesz

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The tracer neurobiotin was injected into the lateral vestibular nucleus in rat and the efferent fiber connections of the nucleus were studied. The labeled fibers reached the diencephalon rostrally and the sacral segments of the spinal cord caudally. In the diencephalon, the ventral posteromedial and the gustatory nuclei received the most numerous labeled fibers. In the mesencephalon, the inferior colliculus, the interstitial nucleus of Cajal, the nucleus of Darkschewitch, the periaqueductal gray matter and the red nucleus received large numbers of labeled fibers. In the rhombencephalon, commissural and internuclear connections originated from the lateral vestibular nucleus to all other vestibular nuclei. The medioventral (motor) part of the reticular formation was richly supplied, whereas fewer fibers were seen in the lateral (vegetative) part. In the spinal cord, the descending fibers were densely packed in the anterior funiculus and in the ventral part of the lateral funiculus. Collaterals invaded the entire gray matter from lamina IX up to lamina III; the fibers and terminals were most numerous in laminae VII and VIII. Collateral projections were rich in the cervical and lumbosacral segments, whereas they were relatively poor in the thoracic segments of the spinal cord. It was concluded that the fiber projection in the rostral direction was primarily aimed at sensory-motor centers; in the rhombencephalon and spinal cord, fibers projected onto structures subserving various motor functions.

Original languageEnglish
Pages (from-to)7-21
Number of pages15
JournalActa Biologica Hungarica
Volume53
Issue number1-2
DOIs
Publication statusPublished - 2002

Fingerprint

Lateral Vestibular Nucleus
spinal cord
Rats
Spinal Cord
Diencephalon
Rhombencephalon
Fibers
rats
Tegmentum Mesencephali
Red Nucleus
Ventral Thalamic Nuclei
Vestibular Nuclei
Inferior Colliculi
Periaqueductal Gray
Reticular Formation
chest
Mesencephalon
tracer techniques
Thorax
fibre

Keywords

  • Lateral vestibular nucleus
  • Neurobiotin labeling
  • Rat

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

Ascending and descending projections of the lateral vestibular nucleus in the rat. / Bácskai, Timea; Székely, G.; Matesz, C.

In: Acta Biologica Hungarica, Vol. 53, No. 1-2, 2002, p. 7-21.

Research output: Contribution to journalArticle

@article{29575b7d9e74479a93363cccb58e3e4a,
title = "Ascending and descending projections of the lateral vestibular nucleus in the rat",
abstract = "The tracer neurobiotin was injected into the lateral vestibular nucleus in rat and the efferent fiber connections of the nucleus were studied. The labeled fibers reached the diencephalon rostrally and the sacral segments of the spinal cord caudally. In the diencephalon, the ventral posteromedial and the gustatory nuclei received the most numerous labeled fibers. In the mesencephalon, the inferior colliculus, the interstitial nucleus of Cajal, the nucleus of Darkschewitch, the periaqueductal gray matter and the red nucleus received large numbers of labeled fibers. In the rhombencephalon, commissural and internuclear connections originated from the lateral vestibular nucleus to all other vestibular nuclei. The medioventral (motor) part of the reticular formation was richly supplied, whereas fewer fibers were seen in the lateral (vegetative) part. In the spinal cord, the descending fibers were densely packed in the anterior funiculus and in the ventral part of the lateral funiculus. Collaterals invaded the entire gray matter from lamina IX up to lamina III; the fibers and terminals were most numerous in laminae VII and VIII. Collateral projections were rich in the cervical and lumbosacral segments, whereas they were relatively poor in the thoracic segments of the spinal cord. It was concluded that the fiber projection in the rostral direction was primarily aimed at sensory-motor centers; in the rhombencephalon and spinal cord, fibers projected onto structures subserving various motor functions.",
keywords = "Lateral vestibular nucleus, Neurobiotin labeling, Rat",
author = "Timea B{\'a}cskai and G. Sz{\'e}kely and C. Matesz",
year = "2002",
doi = "10.1556/ABiol.53.2002.1-2.3",
language = "English",
volume = "53",
pages = "7--21",
journal = "Acta Biologica Hungarica",
issn = "0236-5383",
publisher = "Akademiai Kiado",
number = "1-2",

}

TY - JOUR

T1 - Ascending and descending projections of the lateral vestibular nucleus in the rat

AU - Bácskai, Timea

AU - Székely, G.

AU - Matesz, C.

PY - 2002

Y1 - 2002

N2 - The tracer neurobiotin was injected into the lateral vestibular nucleus in rat and the efferent fiber connections of the nucleus were studied. The labeled fibers reached the diencephalon rostrally and the sacral segments of the spinal cord caudally. In the diencephalon, the ventral posteromedial and the gustatory nuclei received the most numerous labeled fibers. In the mesencephalon, the inferior colliculus, the interstitial nucleus of Cajal, the nucleus of Darkschewitch, the periaqueductal gray matter and the red nucleus received large numbers of labeled fibers. In the rhombencephalon, commissural and internuclear connections originated from the lateral vestibular nucleus to all other vestibular nuclei. The medioventral (motor) part of the reticular formation was richly supplied, whereas fewer fibers were seen in the lateral (vegetative) part. In the spinal cord, the descending fibers were densely packed in the anterior funiculus and in the ventral part of the lateral funiculus. Collaterals invaded the entire gray matter from lamina IX up to lamina III; the fibers and terminals were most numerous in laminae VII and VIII. Collateral projections were rich in the cervical and lumbosacral segments, whereas they were relatively poor in the thoracic segments of the spinal cord. It was concluded that the fiber projection in the rostral direction was primarily aimed at sensory-motor centers; in the rhombencephalon and spinal cord, fibers projected onto structures subserving various motor functions.

AB - The tracer neurobiotin was injected into the lateral vestibular nucleus in rat and the efferent fiber connections of the nucleus were studied. The labeled fibers reached the diencephalon rostrally and the sacral segments of the spinal cord caudally. In the diencephalon, the ventral posteromedial and the gustatory nuclei received the most numerous labeled fibers. In the mesencephalon, the inferior colliculus, the interstitial nucleus of Cajal, the nucleus of Darkschewitch, the periaqueductal gray matter and the red nucleus received large numbers of labeled fibers. In the rhombencephalon, commissural and internuclear connections originated from the lateral vestibular nucleus to all other vestibular nuclei. The medioventral (motor) part of the reticular formation was richly supplied, whereas fewer fibers were seen in the lateral (vegetative) part. In the spinal cord, the descending fibers were densely packed in the anterior funiculus and in the ventral part of the lateral funiculus. Collaterals invaded the entire gray matter from lamina IX up to lamina III; the fibers and terminals were most numerous in laminae VII and VIII. Collateral projections were rich in the cervical and lumbosacral segments, whereas they were relatively poor in the thoracic segments of the spinal cord. It was concluded that the fiber projection in the rostral direction was primarily aimed at sensory-motor centers; in the rhombencephalon and spinal cord, fibers projected onto structures subserving various motor functions.

KW - Lateral vestibular nucleus

KW - Neurobiotin labeling

KW - Rat

UR - http://www.scopus.com/inward/record.url?scp=0036010798&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036010798&partnerID=8YFLogxK

U2 - 10.1556/ABiol.53.2002.1-2.3

DO - 10.1556/ABiol.53.2002.1-2.3

M3 - Article

C2 - 12064781

AN - SCOPUS:0036010798

VL - 53

SP - 7

EP - 21

JO - Acta Biologica Hungarica

JF - Acta Biologica Hungarica

SN - 0236-5383

IS - 1-2

ER -