PSYC 3410 Lecture Notes - Lecture 4: Olfactory Ensheathing Glia, Olfactory Bulb, Menopause

• School: University of Guelph
• Department: Psychology
• Course: PSYC 3410
• Professor: Elena Choleris

Document Summary

N e u ro s c i e n c e i i. J a n ua ry 2 1 , 2 0 1 6. Common and very precise in invertebrates and lower vertebrates frogs, for example, can regrow their optic nerve. Not observed in the cns of higher vertebrates (e. g. mammals) Observed in the pns of higher vertebrates, but uncommon peripheral nervous system have nerves that can grow back. Axonal myelination (white: glial cells in central and peripheral nervous system excitatory, in pns shwann cells sit as pearls around. Produce and release neurotropic factors (neurotropins) stimulate cell growth, morphology, and health (including the growth of a new axon if damaged) Produce cell adhesion molecules (cams) that provide a pathway for cells that are migrating during neurodevelopment as well as for axons that are growing towards their target (even in adults, after damage) On surface of membrane so less susceptible to damage: in cns oligodendrocytes are attached to nearby axons.