What is the Mind? - Understanding the Mind

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	Initial Segment Price: 0 Description: The initial segment of axons has specialized features that make it the center for triggering action potentials. Action potentials are the means of short and long pathway signaling that links many regions of the brain such as sensory, motor and MIND systems. Initiation of action potentials occurs only at the initial segment."
Excerpt from the Presentation: Triggering of action potentials occurs at the initial segment of the axon. This transitional region of neurons is signalled by synaptic inputs in dendrites and soma. Synaptic-potentials operate at only about 3 mV although they summate by 10 to 30 mV. The signal to the initial segment is from summation of synaptic potentials throughout dendrites and the soma. These depolarizations target voltage-gated sodium channels in the initial axonal segment. When the soma potential lowers the axoplasm to