Anatomy of a Neuron | Action! | Getting Across the Membrane | Signaling across synapses | Don't choose this |
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What is a Soma?
This is another name for a cell body.
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What is an Action Potential?
The potential that a neuron must reach for an action potential to be generated
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What are Ligand-gated Channels?
This general kind of channel opens in response to the presence of a neurotransmitter.
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What are electrical chemical synapses?
The two types of synapses.
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What is a Synapse?
The junction between a synaptic terminal and another neuron.
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What is Depolarization?
The type of response an action potential is, because it occurs or it does not
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What are Voltage-gated Ion Channels?
This general kind of channel opens in response to a change in the membrane potential.
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What are axo-dendritic synapses?
The majority of synapses are this type.
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What is an Efferent Neuron?
Conducts impulses away from the cell body to another neuron, muscle, or gland
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i dunno
Closed channels at resting state.
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What is the Sodium-Potassium Pump?
This membrane protein uses ATP to restore concentrations of Na+ and K+ to their “resting” levels.
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What is Glutamate
The most common excitatory neurotransmitter in the brain.
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What is an Afferent Neuron?
Receive stimuli and send signals to the cell body
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What is Repolarization?
The process in which the membrane potential returns to its resting state
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What is positive feedback?
A voltage-gated Na+ channel propagates the action potential by using this kind of feedback
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What is a Nerve Impulse?
This causes the release of neurotransmitter into the synaptic cleft.
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What is Myelin?
The insulating cover that axons of many neurons are surrounded by
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What is Resting Potential?
The level an axon depolarizes to in order to generate an action potential
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What is K+?
When this ion crosses the membrane through specific channels, the membrane
potential becomes more negative |
Acetylcholine, Dopamine, Serotonin, Glutamate, GABA
The five major groups of neurotransmitters
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