Truncothalamus
As Truncothalamus is referred to in the neuroanatomy all non-specific nuclear regions in the thalamus , a part of the diencephalon (diencephalon). These nuclei receive afferents from many other brain regions ( brain stem , basal ganglia , cerebellum and specific thalamic nuclei ). Only a few efferents pull the cerebral cortex and this only in brain regions that cannot be assigned a specific function. In contrast to the specific thalamic nuclei, the nuclei of the truncothalamus work independently of the cerebral cortex.
The truncothalamus includes:
- Nuclei mediani
- Intralaminar nucleus including centromedian nucleus .
The truncothalamus, especially the intralaminar nuclei, cause a non-specific global excitation of the cerebral cortex via their direct pathways or indirectly via specific thalamic nuclei, thus putting them into an activated waking state. The truncothalamus itself is stimulated by the ascending reticular activation system .
Lesions in the truncothalamus lead to a decreased level of consciousness and impaired attention.
Individual evidence
- ↑ a b c Natalie Garzorz-Stark: Basics of Neuroanatomy . 2nd Edition. Elsevier Health Sciences, 2018, ISBN 978-3-437-09717-1 , pp. 57 .
- ^ Thomas Hill: Examination Knowledge Physikum . Georg Thieme, Stuttgart 2009, ISBN 978-3-13-152131-6 , p. 360 .
- ^ Jochen Fanghänel, Franz Pera, Friedrich Anderhuber, Robert Nitsch: Waldeyer - Anatomie des Menschen . 17th edition. Walter de Gruyter, 2009, ISBN 978-3-11-022104-6 , p. 407 .