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13 Cards in this Set
- Front
- Back
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What is a remak bundle? |
For unmyelinated axons where an oligodendrocyte/Schwann cell engulfs many axons without winding around them many times like in myelinatef axons. |
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Saltatory conduction |
AP jumping from one Node of Ranvier to the next. |
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What happens when noradrenaline binds to B-adrenoreceptors? |
Through GPCR, activates adenyl cyclase, creates a lot of cAMP, kinases P Ca channels to create PSP |
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What channels do IPSPs open and what does that do? |
Cl channels bring the MP back down |
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How do you achieve a Spike Train? |
Open voltage gated K channels to quickly hyperpolarize the membrane |
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How do Olfactory receptors relay info? |
GPCR pathway to trigger an AP |
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How do sensory cells relay info? |
Can generate AP or release vesicles |
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Taste receptors relay pathway? |
Taste cells release neurotransmitters to a postsynaptic neuron that can generate an AP |
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Temporal change |
In phasic adaptation, change over time |
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Spatial change |
In phasic adaptation, difference between neighboring cells |
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Lateral inhibition |
Secondary neurons stimulate direct tertiary neron but inhibits adjacent tertiary neurons. Thus, the tertiarys neurons create an edge |
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What do astrocytes do in the brain? |
Connect brain neurons and blood vessels Support neurons Cleans up neurotransmitters Provide energy for neurons (lactate) Regulate local blood flow |
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Where is the CSF made? |
From the choroid plexus lining the ventricles |
