PSYCH261 Chapter Notes - Chapter 2: Camillo Golgi, Endoplasmic Reticulum, Chemical Synapse

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

Document Summary

Camillo golgi (before cajal, found way to stain nerve cells with silver salts) Membrane/ plasma membrane (surface of a cell, separates inside of the cell from the outside environment, composed of 2 layers of fat molecules that are free to flow around one another, most chemicals cannot cross the membrane. Specific protein channels permit controlled flow of chemicals) All animal cells have (except for mammalian red blood cells): Mitochondrion (performs metabolic activities, provides energy that cell requires for all other activities, require fuel and oxygen to function) Larger neurons have dendrites, a soma (cell body), an axon, and presynaptic terminals. Smaller neurons (lack well-defined dendrites and axon) Motor neuron (has soma in the spinal cord, receives excitation from other neurons through its dendrites and conducts impulses along its axon to a muscle) Dendrites (branching fibers, get narrower near the ends, surface lined with specialized synaptic receptors" receives info. From other neurons, greater the surface area of a dendrite more info.