ANP 1105 Lecture Notes - Lecture 1: Retina, Kinesin, Nucleolus

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: William Staines

Document Summary

There are four neuroglia in the cns and two in the pns. (ask if the different types are required) Microglial cells are small and have long thorny processes, so basically since immune system has limited access to cns these microglial cells they monitor the health of nearby neurons and can phagocytise microrganisms. Oligodendrocytes- these are branched like astrocytes but have less processes, they wrap around nerve fibers in cns producing an insulating cover called myelin sheath. Satellite cells- these surround and protect the neuron cell body in the pns and has many of the same function as astrocytes do in the cns. Schwann cells- these surround nerve fibers in pns so they have same functions as oligodendrocytes except they are also vital to regeneration of damaged nerve fibers. Neurons are amitotic meaning if they get damaged, they cannot be regenerated. The exceptions to this is the olfactory epithelium and the hippocampus because they have stem cells.