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Two main types of nerve cells
neurons (cell body, dendrites, axon)
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Dendrites
transmit impulses to the cell body
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Axon
transmits impulses away from the cell body
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Neuroglia
does not conduct nerve impulses, support nourishes and protects neurons
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Blood brain barrier
cells of the blood vessels form a tight junction that doesnt allow substances to cross
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CSF
similar to plasma, subarachnoid space, shock-absorbing medium
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Frontal lobe
intellectual functions
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Temporal lobe
auditory and olfactory
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Cerebellum
muscle tone, posture and balance
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What does not store glucose or oxygen
CNS-needs constant supply from arterial blood
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CN 2
optic sense of sight
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CN 3
oculomotor, constriction of pupil to light
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Movement of eyeball
3,4,6
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What provides balance
cerebellum
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