Brain 2 Flashcards
(8 cards)
Nerve cell that is the basic building block of the nervous system
Neuron
Part of the neuron that contains the nucleus, cells lift support center
Cell body
Bushy branching extensions that receive and integrate messages conducting impulses toward the cell body
Dendrites
Attached to cell body the neuron extension that passes messages through its branches to other neurons or to muscles or glands
Axon
Fatty tissue layer segmentally encasing the axons of some neurons increases transmission speed and provides insulation
Myelin sheath
Ends of the axon containing terminal buttons which hold sypnatic vesicles that store neurotransmitters
Terminal branch
Cells that support nourish and protect neurons they also play a role in learning thinking and memory
Glial cells
Level of stimulation required to trigger a neural impulse
Threshold