ANAT 261 Lecture Notes - Neuroglia, Schwann Cell
15 Mar 2012
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: in the middle: contains: glial cells, unmyelinated axons, cell bodies and dendrites, motor neurons are large and contain nissel bodies. Nissel bodies = basophilic (dark purple), contain rough er + Rna; are present only in cell body or dendrite, not in axon: glial cells appear a lot smaller with very round nucleus. Only present for support and nourishment: oligodendrocytes: also produce myelin in cns, microglia, astrocytes. : peripheral: contains: glial cells & myelinated axons, no cell bodies, axons are seen in both longitudinal and cross section. In cross, they are surrounded by white myelin (not so in gray matter) : canal in the middle of the spinal cord for. White matter is central, while gray matter is peripheral. Gray matter is subdivided into three layers: (most superficial) Contains fibers and neuronal cells: molecular layer, purkinje layer (middle layer) They send their axons into granular level and dendrite into molecular. No nissel bodies: granular layer (deepest)
