Light and electron microscopic studies on the medial forebrain bundle in the rat. II. Nerve terminals from the medial hypothalamus

H. Van Cuc, Cs Leranth, M. Palkóvits

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

After the surgical interruption of connections between the medial and lateral hypothalamus of the rat axonal (transient) and nerve terminal, degeneration was shown in the medial forebrain bundle (MFB) with light and electron microscopy. Following 1 mm long parasagittal cuts at various rostro-caudal levels the degeneration pattern within the MFB indicated a certain territorial arrangement of terminating fibres from the medial hypothalamus. After a parasagittal cut through the lateral retrochiasmatic area, degeneration was observed in the full length of the MFB. This suggests that a number of axons connect the medial and lateral hypothalamus through this area. With the aid of a parasagittal cut separating totally the medial and lateral hypothalamus, the degeneration of dendrites in the middle portion of the lateral hypothalamus was also revealed. These proved to derive from cells of the ventromedial nucleus.

Original languageEnglish
Pages (from-to)69-82
Number of pages14
JournalActa Morphologica Academiae Scientiarum Hungaricae
Volume27
Issue number1-2
Publication statusPublished - 1979

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Lateral Hypothalamic Area
Medial Forebrain Bundle
Middle Hypothalamus
Electrons
Light
Nerve Degeneration
Dendrites
Cell Nucleus
Axons
Electron Microscopy

ASJC Scopus subject areas

  • Anatomy

Cite this

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abstract = "After the surgical interruption of connections between the medial and lateral hypothalamus of the rat axonal (transient) and nerve terminal, degeneration was shown in the medial forebrain bundle (MFB) with light and electron microscopy. Following 1 mm long parasagittal cuts at various rostro-caudal levels the degeneration pattern within the MFB indicated a certain territorial arrangement of terminating fibres from the medial hypothalamus. After a parasagittal cut through the lateral retrochiasmatic area, degeneration was observed in the full length of the MFB. This suggests that a number of axons connect the medial and lateral hypothalamus through this area. With the aid of a parasagittal cut separating totally the medial and lateral hypothalamus, the degeneration of dendrites in the middle portion of the lateral hypothalamus was also revealed. These proved to derive from cells of the ventromedial nucleus.",
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