PSY 110 Lecture Notes - Lecture 3: Action Potential, Resting Potential, Myelin

• School: University of Miami
• Department: Psychology
• Course: PSY 110
• Professor: Roderick Gillis

Document Summary

Neurons cells of the brain and rest of the nervous system. (know, for example, that parasympathetic is part of autonomic rather than somatic) Myelin insulates the axon and increases speed of connection. Terminal buttons store and release chemical substances (neurotransmitters) that enable nerve impulses to cross from one neuron to others. Resting potential state in which a neuron is not transmitting a nerve impulse. net negative charge relative to outside environment, so potential energy prepares it to be activated by an impulse impulse from another neuron or neurons. Graded potential voltage change in a neuron"s dendrites that is produced by receiving an. Action potential electrical signal that flows along the surface of the axon to the terminal buttons. Neurotransmitters to know: (just know the names and know that they are neurotransmitters) Cerebral cortex, cerebrum, neocortex, left and right hemispheres. Corpus callosum connects the left and right hemispheres. The left side controls the right side, and vice versa.