GENERAL HISTOLOGY

Detailed explanation-1: -This is the largest peduncle and connects the cerebellum to the pons. It connects the contralateral pontine nucleus to the cerebellar cortex and also carries the input from the contralateral cerebral cortex. It is composed of three fasciculi including the superior, inferior and deep.

Detailed explanation-2: -The primary efferent fibers arise from an important nucleus deep in the cerebellum called the dentate nucleus. The rubrospinal and dentatothalamic pathways, along with several other tracts, leave by way of the superior peduncle and terminate in the contralateral red nucleus and ventrolateral nucleus of the thalamus.

Detailed explanation-3: -The middle cerebellar peduncles contain afferent white matter projection fibers which originate in contralateral pontine nuclei. The corticopontocerebellar pathway is the predominant afferent fiber pathway that passes through the MCP.

Detailed explanation-4: -There are three on each side: the inferior cerebellar peduncle (#4025, #6172), the middle cerebellar peduncle (brachium pontis) (#8361, #6553), and the superior cerebellar peduncle (brachium conjunctivum) (#6554). The middle and inferior cerebellar peduncles contain most of the cerebellar afferents.

Detailed explanation-5: -These peduncles are superior, middle and inferior. Superior cerebellum connects cerebellum to the midbrain, middle to the pons and inferior to the medulla oblongata. Superior cerebellar peduncle (brachium conjunctivum) ascends upward from the anterior cerebellar notch to the tectum of the midbrain.