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Cards In This Set
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The Aging brain has the ability to
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Grow new connections, adapt to change and alter existing connections
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The brain is what....
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Plastic
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Each neuron is a self contained functioning unit of what
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Contains organelles, including a nucleus harboring dna
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Characteristic features of neurons are?
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Neurities- long thin fingerlike extensions from the cell body
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Brain consistency
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Bean curd
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Neurons are what shape
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They are mixed in shape
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How does a neuron receive signals from other neurons?
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Multitudinous branching dendrites
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What is a synapse
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A communication site where neurons pass nerve impulses among themselves
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What is a synaptic cleft
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A incredibly thin gap
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Synapses are divided into types according to the sites where the neurons almost touch. What sites are they?
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Soma, dendrites, axon, dendritic spines
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Can a brain form new nerve cells
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Yes but nerve cell repair is very slow
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What is the majority of the cells in the brain
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Glial or support cells
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Name some glial cells
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Microglia, and oligodendrocytes
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Name a support cell
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Astrocytes
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What does a microglia do
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Destroys invading microbes and clear away debris from degenerating neurons
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