Cerebellum Flashcards
1
Q
What are the nuclei within the Cerebellum?
A
- Dentate
- Festigal
- Emboliform
- Globose
2
Q
Outline the 3 functional anatomical subdivisions of the Cerebellum?
A
- Archicerebellum [oldest]
- Paleocerebellum
- Neocerebellum [youngest]
3
Q
Outline the Archicerebellum
A
Balance [oldest] - Floculonodular lobe
- From ipsilateral Vestibular nuclei [via inf. cerebellar peduncles]
- To Floculonodular lobe - processed in Fatigial nuclei
- To Vestibular & Reticular nuclei on both sides
- Vestibulospinal & reticulospinal tracts [trunk stability]
4
Q
Outline the Paleocerebellum
A
Muscle tone & posture - Anterior lobe
- From Ant & Post. Spinocerebellar tracts [via sup & inf cerebellar peduncles]
- To ipsilateral para/**Vermis **[cerebellar cortex]
- ⇒ **Globose & Emboliform & Fastigial nuclei **[cerebellum]
- To contralat. Red nuclei & Rubrospinal tracts
5
Q
Outline Neocerebellum
A
Muscular coordination [trajectory, speed & force]
- From contralateral Pontocerebellar fibres [from red nucleus via mid. cerebellar peduncles]
- To Cerebellum cortex ⇒ Dentate nucleus
- To **contralat. Red nuclei **⇒ **Thalamus **⇒ Motor cortex
6
Q
What can happen to the cerebellum in increased cranial pressure?
A
Cerebellar tonsils [on inferior surface] can be pushed into foramen magnum
Breathing centres are there
