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11 terms

Dendrites, Axon

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Dendrites
branched, thick extensions, coming directly off of the cell body
functions of Dendrites
to receive a nerve impulse and carry nerve impulses toward the cell body
Axon
a thin long process, ranges in length from lml to lm depending on location
function of Axon
carries nerve impulses away from the cell body towards other neurons, muscle and glands
axon hillock
where axon joins the cell body (meeting place)
trigger zone
where a nerve impulse is started
myelin
white phospholipid covering an axon found only on some neurons
axon terminals
branches that the axon divides into
synaptic end bulbs
enlarged region at the end of each terminal
synaptic vesicles
membrane enclosed sacs located with in the synaptic end bulbs
neurotransmitter
chemical that is stored in the synaptic vesticles