NETTER - Neuroscience Flash Cards

Cerebellar Anatomy: Internal Features
1. Superior cerebellar peduncle
2. Lingula
3. Vermis
4. Emboliform nucleus
5. Dentate nucleus
6. Globose nucleus
7. Fastigial nucleus
8. Fourth ventricle
9. Decussation of the superior cerebellar peduncles
Comment: The cerebellum helps to smooth and coordinate
movements as its most conspicuous function, and it also coordinates
neural activities associated with nonmotor functions. The deep
cerebellar nuclei provide the coarse adjustment, and the cerebellar
cortex provides the fine adjustment through processing of inputs and
subsequent modulation of the deep nuclei. The deep nuclei help to
smooth and coordinate motor functions through projections to upper
motor neuronal structures [fastigial nucleus with vestibulospinal
systems; globose and emboliform nuclei with the rubrospinal tract;
dentate nucleus with the corticospinal tract mainly via (ventrolateral
nucleus) of the thalamus]. Lesions of the deep nuclei are more
severe and lasting in producing loss of coordination, dysmetria,
ataxia, and other associated cerebellar symptoms than are lesions of
regions of the cerebellar cortex.
Overview of the Nervous System See book 4.4