PSYCH261 Lecture Notes - Lecture 2: Extracellular Fluid, Grey Matter, Chemical Synapse

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH261
• Professor: Karly Neath

Document Summary

2016-01-17 (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Supporting or glue cells, nutrition, structure, immune, facilitating neuronal conductions. Fundamental processing units, make the machine work. Soma (cell body): computations are done, decides if signal is sent down the axon. Afferent signal: information is brought into the soma (dendrites) Neurons conduct their signal from dendrites to soma to axon. Cytoplasm is the location of protein assembly (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Sensory neurons run to the base of heads without disturbance. Axoplasmic flow: can go away (ortho/anterograde transport) or towards (retrograde transport) from the cell body. Schwann cells: make myelin sheath in the pns but for only one cell, if nerve is injured it will make a tunnel for it to recover, gion baray affects the myelin in the pns more. Squid giant axon popular for early testing. Membrane allows for it to have a charge.