PSYC 465 Lecture Notes - Lecture 2: Axon, Resting Potential, Neuroglia
2 Feb 2017
School
Department
Course
Professor
Document Summary
More similarities between neurons: 4) telodendria. Located at the end of the axon, not dendrites. The action potential travels from the axon to the end of every telodendria. Place of functional contact between one neuron and another. Enlargement at the end of each telodendria is a bouton. Bouton contains synaptic vesicles: full of neurotransmitters, some will release the neurotransmitter substance (nts) to another neuron. Pre-synaptic cell the cell releasing the neurotransmitter. Post-synaptic the cell retrieving the neurotransmitter. Synaptic cleft the space between the bouton and the receiving neuron. An arbitrary value closer to 0 mv, no specific value: two types of effects possible once the neurotransmitters are released into the post- synaptic cell: Makes the post-synaptic cell more likely to fire. Does not make the cell fire because the size of mv transmitted is very small less than or equal to half a mv. Makes the post-synaptic cell less likely to fire.
