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Deep Cerebellar Nuclei and Connections of Functional DivisionsDivisions

by Craig Canby, PhD
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    00:00 Associated with the cerebellum would be a population of cerebellar nuclei. These cerebellar nuclei have efferent or outputs. So we’ll explore the nuclei and what their output is. Where are they going? What are they signaling? What is that circuit between them and another structure? The first nucleus to point out is the fastigial nucleus. It’s identified in this region and we see it here on the opposite side.

    00:39 Output from the fastigial nucleus will be to the vestibular nucleus, that nucleus that will help control equilibrium or balance. We also have a collection of nuclei that I’m going to just call the interposed nucleus. There are three of them identified here, here, and here. These are shown, at least two of them are shown over here on the opposite side. Then the third one that is not present in this oblique section would reside along here. The interposed nucleus connects to the red nucleus in the midbrain. It also has connections to the reticular formation in the brain stem. The most prominent nucleus is the dentate nucleus.

    01:35 You can see the irregular contour of this very large nucleus and here it is on the opposite side.

    01:44 This projects to the thalamus specifically the ventral anterior and ventral lateral thalamic nuclei.

    01:56 The cerebellum can also be defined functionally. This functional definition is going to be by connections from these functional divisions. First is the vestibulocerebellum. The vestibulocerebellum would connect between the cerebellum and the vestibular nucleus. The vestibulocerebellum is the flocculonodular lobe that we see here. The spinocerebellum is the connection between the cerebellum and the pathways in the spinal cord. This is occurring within the intermediate hemisphere. So the intermediate hemisphere represents the spinocerebellum. Then lastly, we have a connection between the cerebellum and the pons.

    02:58 This constitutes the pontocerebellum. This functional division is represented by the lateral hemisphere.


    About the Lecture

    The lecture Deep Cerebellar Nuclei and Connections of Functional DivisionsDivisions by Craig Canby, PhD is from the course Cerebellum. It contains the following chapters:

    • Deep Nuclei
    • Functional Divisions

    Included Quiz Questions

    1. Dentate nucleus
    2. Emboliform nucleus
    3. Interposed nucleus
    4. Fastigial nucleus
    5. Globose nucleus
    1. Vestibular nuclei
    2. Nucleus ambiguus
    3. Dorsal motor nucleus
    4. Subthalamic nucleus
    5. Red nucleus
    1. Intermediate hemisphere
    2. Lateral hemisphere
    3. Vestibulocerebellar pathways
    4. Pontocerebellar pathways
    5. Flocculonodular lobe

    Author of lecture Deep Cerebellar Nuclei and Connections of Functional DivisionsDivisions

     Craig Canby, PhD

    Craig Canby, PhD


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    really good sir
    By INSTANT C. on 19. January 2017 for Deep Cerebellar Nuclei and Connections of Functional DivisionsDivisions

    really good sir,we need more questions after the lecture,my exam in june,step 1,so i opted for lecturio,by coming across on youtube,really good,