PSYCH261 Lecture Notes - Lecture 3: Radial Glial Cell, Schwann Cell, Neuroglia

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH261
• Professor: Daniel Smilek

Document Summary

Schwann cell (creates an axon to reconnect to the other cells) Radial glia (help guide the radiation where to go, after the brain matures and develops, the radial glia disappears into other glia) Glucose, hormones and amino acids have to be actively transported to the brain. Amino acids are important because they form the building blocks of chemical substances. Thiamine is important because it is necessary for the production of glucose. Difference in the charge of the inside and outside provides a source of energy for electrical signals. The movement of ions (diffusion- tendency for molecules to distribute themselves equally within a medium, electrostatic pressure- electrical force is an important part of movement opposite charges attract & same charges repel) The resting potential (membrane allows potassium to cross freely slowly, sodium channels are closed, inside about -70mv) Inside the axon it is much more negatively charged than the outside of the axon.