PSY 2301 Lecture Notes - Lecture 5: Hexa, Emergence, Zygosity

• School: University of Ottawa
• Department: Psychology
• Course: PSY 2301
• Professor: Andree- Anne Ledoux

Document Summary

Glial cells there are 5 major types of glial cells in our body: we already covered the first three last lecture. Oligodendrocytes: part of the cns, myelinates axons in the cns, rolls itself around different neurons, you will have many oligodendrocytes per axon, they help myelinate the whole axon by segments. Schwann cell: only one schwann per segment, but there are many per axon. Paralysis: loss of sensation and movement due to nervous system injury. Pns: microglia and schwann cells help repair neurons if nerves in the pns are damaged, they can repair! the schwann cells help regenerate a new axon, 1. Schwann cells shrink and then divide, forming glial cells along the axon"s former path. The neuron sends out axon sprouts, one of which finds the schwann- cell path and becomes a new axon. Schwann cells envelop the new axon, forming new myelin. It is for communication: another function of the neuron is to produce proteins.