PSYC 1101 Lecture Notes - Lecture 2: Central Nervous System, Resting Potential, Myelin
Document Summary
Dendrite - receive messages and conduct them toward the cell body(listen) Axon - sends out messages to other neurons or to muscles or glands (speak) Action potentials - threshold in a neuron is the point of depolarization at which the neuron fires, transmitting information to another neuron. Glial cells provide nutrients and myelin for neurons: guide neural connections and clean up after neurons send messages to one another. Synapses meeting place of neurons, where they separate by synaptic gap. Threshold - the level of stimulation required to trigger a neural impulse: refractory period is the resting pause after neuron fires sending an impulse down its axon carrying information to another cell. All or none response is when a neuron"s reaction of either firing or not firing. When action potential reaches the axon"s end, your neural system converts an electrical impulse into a chemical message.
