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neurotransmitters
neuroglia, transmitters and stuff
Question | Answer |
---|---|
create myelin sheaths in CNS | oligodendrocytes |
create myelin sheaths in PNS | schwann cells |
destroy pathogens | microglia |
holds neurons in place and act as intermediary between capillaries and neurons | astrocytes |
membrane potential the inside of the cell is mostly | negative |
membrane potential the outside of the cell is mostly | positive |
normally found in higher concentration outside the cell | NA+ |
normally found in higher concentrations inside the cell | K+ |
if sodium channels open sodium will flow in causing | depolarization |
if potassium channels open, potassium will leave the cell causing | hyperpolarization |
resting membrane potential of a neuron | -70mV |
if a neuron is depolarized to -55mV | an action potential will occur |
non myelinated areas of the CNS appear as | grey matter |
myelinated areas appear as | white matter |