Psy 102

the nerve impulse arising in an axon

a cell of the nervous system that is specialized for information processing and communication

cells in the nervous system that support the activities of neurons

ion channels allow ions to move in and out of the cell without spending energy while an ion pump uses energy to move ions

movement of materials from the cell body of a neuron to the axon terminal along the microtubules

movement of material from the axon terminal back to the cell body via the cell's system of microtubules

a neuron that communicates with the neurons in its immediate vicinity

a neuron with a very long axon that communicates with neurons in the distant areas of the nervous system

large glial cells including astrocytes, oligodendrocytes, and Schwann cells

tiny glial cells that migrate to areas of damage and digest debris

• large star shaped glial cell of CNS
• responsible for structural support, isolation of the synapse, control of the extracellular chemical environment

forms myelin on CNS axon

forms myelin on axon in PNS