Anatomy and Cell Biology 3319 Lecture Notes - Lecture 7: Inferior Cerebellar Peduncle, Superior Cerebellar Peduncle, Middle Cerebellar Peduncle
3 Jan 2018
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Document Summary
The spinal cord/ the brainstem has a lot of fibres that connect to the forebrain (diencephalon) Also many nerves going out to motor areas or cranial nerves going to the head and neck regions: need nuclei to control them. Midbrain: relatively undifferentiated structure: cerebral aqueduct cuts through the midbrain, has csf between the 3rd and 4th ventricle. Tail end of the medulla merges with the spinal cord: a little differentiated. Pyramid (corticospinal fibre): fibres parallel to the midline: fibres along the neuroaxis. Optic chiasm: crossing parts of nerve, optic tract. Basal portion of pons: large collection of white neurons, axons running perpendicular to the axis: large collection fibres crossing the midline. Olivary nucleus: varying nuclei connected to the cerebellum: has a ventral medial sulcus, start in the cerebral cortex and end in the spinal cord, some of the cerebral peduncle are parts of this. Motor nerves going to eye and muscles, ear, salivation (cranial nerves)
