Nucleus globosus

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The nucleus globosus (lat. For "spherical nucleus"), also nucleus interpositus posterior , is a core area in the cerebellum .

anatomy

The nucleus globosus is the smallest of the cerebellar nuclei in humans with an approximate diameter of 5 mm and is laid out as a core area in both cerebellar hemispheres. It was named after its more or less rounded shape. It is located medial to the emboliform nucleus and lateral to the fastigii nucleus . The nucleus globosus and nucleus emboliformis are often combined as nucleus interpositus . The spherically arranged nerve cells vary in size, but the majority of them are smaller than those of the nucleus fastigii. In the rostral direction , the nucleus often dissolves into individual cell groups; in the caudal direction it usually forms a thin but solid cell layer.

Projections

The nucleus globosus receives afferents mainly from the Purkinje cells from the paravermal (intermediate) and vermalen zone of the spinocerebellum . The efferent fibers extend to a portion in the tract cerebellorubralis over the superior cerebellar peduncle to Pars magnocellularis the red nucleus as well as the oculomotor areas in the mesencephalon and to the nucleus ventrolateralis of the thalamus . On their way there, the pathways cross in the Decussatio pedunculorum cerebellarium superiorum (= Stilling's scissors) in the tegmentum mesencephali to the contralateral side. Another part of the fibers of the nucleus globosus runs to the medulla oblongata .

swell

  1. ↑ Peter Kugler: Nervous System. Cerebellum. In: Detlev Drenckhahn (Ed.): Anatomie. Macroscopic anatomy, histology, embryology, cell biology. Vol. 2, 16th edition Munich 2004, ISBN 3-437-42350-9 , p. 394.
  2. ↑ a b c Helmut Leonhardt, Winfried Lange: Gray and white matter of the brain stem. In: Helmut Leonhardt (Hrsg.), August Rauber, Friedrich Kopsch: Anatomie des Menschen, textbook and atlas, Vol. 3: Nervous system, sensory organs. Stuttgart / New York 1987, ISBN 3-13-503501-8 , p. 310.
  3. ↑ Martin Trepel: Neuroanatomy. Structure and function. 2nd edition Munich / Jena 1999, ISBN 3-437-41296-5 , p. 150.
  4. ↑ Ingo Bechmann , Robert Nitsch: Central nervous system, systema nervosum centrale, brain, encephalon, and spinal cord, medulla spinalis. In: Jürgen Fanghänel (Ed.), Anton Johannes Waldeyer : Anatomie des Menschen. 17th edition Berlin / New York 2003, ISBN 3-11-016561-9 , p. 513.

literature

  • Waldeyer : Human anatomy . 18th edition, p. 514 re. “Stilling's scissors” and “Tegmentum Mesencephali”.