What is the function of fastigial nucleus?

What is the function of fastigial nucleus?

The rostral fastigial nucleus (rFN) is related to the vestibular system. It receives input from the vestibular nuclei and contributes to vestibular neuronal activity. The rFN interprets body motion and places it on spatial planes to estimate the movement of the body through space.

What is fastigial nucleus?

Fastigial nucleus (FN) is the phylogenetically oldest nucleus in the cerebellum, a classical subcortical motor coordinator.

What is the function of the dentate nucleus?

Structure and Function The dentate nucleus regulates fine-control of voluntary movements, cognition, language, and sensory functions.

Does the fastigial nucleus project to the thalamus?

Cerebellar Nuclei The neurons in the fastigial nucleus project to the vestibular nuclei and reticular formation by way of the rostral cerebellar peduncle. The most direct pathway is from the neurons in the ventral lateral thalamic nucleus, the axons of which enter the internal capsule via the thalamocortical fibers.

Where does the fastigial nucleus get its input from?

The fastigial nucleus receives its input from Purkinje cells in the vermis. Most of its efferent connections travel via the inferior cerebellar peduncle to the vestibular nuclei, which are located at the junction of the pons and the medulla oblongata .

Are there excitatory axons in the fastigial nucleus?

The fastigial nucleus contains excitatory axons which project beyond the cerebellum, unlike the Purkinje cells that convey the purely-inhibitory output of the cerebellar cortex. The likely neurotransmitters of the excitatory fastigial nucleus axons are glutamate and aspartate.

How is the fastigial nucleus related to saccadic eye movements?

The caudal fastigial nucleus (cFN) is related to saccadic eye movements. The Purkinje cell output from the oculomotor vermis relays through the cFN, where neurons directly related to saccadic eye movements are located.

Where do fastigial efferent fibers terminate in the body?

These fastigioreticular fibers terminate mainly in the lateral reticular nucleus, the gigantocellular reticular nucleus, and the paramedian reticular nuclei. In addition, some fastigial efferent fibers also terminate in the pontine reticular nucleus, pars caudalis (possibly also in the pars oralis), and in the reticulotegmental pontine nucleus.