PT 518 Study Guide - Quiz Guide: Deep Cerebellar Nuclei, Inferior Cerebellar Peduncle, Emboliform Nucleus
20 Nov 2020
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Development review: rhombencephalon metencephalon pons, upper medulla, cb part of 4th ventricle. Myelencephalon lower medulla part of 4th ventricle and central canal. General: literally means little brain , largest structure in posterior fossa, attached to rostral pons by 3 ventricles, floor of cerebellum creates roof of 4th ventricle. In adults weight ratio between cerebellum and cerebrum is 1:10 (due to deep cerebellar folds) Cerebral nuclei: general , 3 deep cerebellar nuclei, all output from cb is relayed via these nuclei and also relayed to vestibular nuclei. Ventral surface: posterolateral fissure separates posterior lobe from flocculonodular lobe, 2 flocculus connected by the nodulus (most inferior portion of vermis) Receives input (projections) from lateral cb hemispheres: interposed. Can be subdivided into emboliform and globose (emboliform is lateral to globose) White matter = corpus medullaris: deepest, inner layer, contains cerebellar nuclei. Large, myelinated axons from primary sensory neurons in le. Large, myelinated axons from primary sensory neurons in ue.
