Nucleus ruber
An anatomical
illustration from the 1908 edition of Sobotta"s Anatomy Atlas
The red nucleus is one of the brainstem nuclei and part of the extrapyramidal system. The red nuclei are situated within the tegmentum of the midbrain (the part between the cerebral peduncles and the quadrigeminal plate). It consists of a larger neorubrum and smaller paleorubrum.
Function
It receives afferent fibers from several locations within the diencephalon:
- dentate nucleus (dentatorubral tract)
- superior colliculi (tectorubral tract)
- inner pallidum (pallidorubral tract)
- cerebral cortex (corticorubral tract)
It sends its axons to the olive (rubro-olivary and reticulo-olivary fibers) and spinal cord (rubrospinal tract). Its action includes the coordination of muscle tone, body position and gait.
Pathology
A lesion of the red nucleus causes resting tremor, abnormal muscle tone and choreoathetosis.
Siehe auch:
- Mesencephalon
- diencephalon
- cerebral peduncles
- brainstem nuclei
- Tegmentum (Gehirn)
- Nucleus subthalamicus
- Tectum mesencephali
- Extrapyramidalmotorisches System
und weiter:
Assoziationen und Differentialdiagnosen zu Nucleus ruber:
