PSYC 3265 Chapter Notes - Chapter 2: Myelin, Cerebral Cortex, Electronic Component
11 Dec 2017
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Document Summary
Neuron - specialized cell for the transmission and retention of information. Dendrites - used for receiving signals either from sensory cells or from other neurons. Axon - transmit information out of the neuron either to other neurons or to muscles and. Responsible for sending out information to the neuron. Terminal buttons - at the end of each axon are nodules called terminal buttons - contain neurotransmitters. Neurotransmitters - the chemicals that are used to send signals to other neurons. Myelin sheath - acts as an insulator - because axons can sometimes be quite lengthy, to avoid the loss or confusion of signals, some neurons have axons that are encased in a fatty substance. If a neuron has this, the myelin is not created by the neuron, but by glial cells associated with in ranvier. Myelin sheath 0 not continuous but has gaps along its length called the nodes of.
