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IB Biology HL

Ca Neurotransmitters Action Potential Arrives Axon Terminal Voltage Gated

Original 1. action potential arrives at axon terminal
2. voltage-gated Ca2+ channels open
3. Ca2+ enters presynaptic neuron 
4. Ca2+ signals neurotransmitter vesicles to dock
5. neurotransmitters released (exocytosis)
6. neurotransmitters bind to receptors 
7. signal initiated in postsynaptic cell 
Title chemical transfer across synapses 
Settings 1,1,0 | n,n,n,n
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1. action potential arrives at axon terminal
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Text2
1. action potential arrives at axon terminal
2. voltage-gated Ca
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2. voltage-gated Ca
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2+
 channels open
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Text5
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 channels open
3. Ca
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3. Ca
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2+
 enters presynaptic neuron 
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Text8
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 enters presynaptic neuron 
4. Ca
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4. Ca
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Text10
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2+
signals neurotransmitter vesicles to dock
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Text11
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signals neurotransmitter vesicles to dock
5. neurotransmitters released (exocytosis)
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Text12
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5. neurotransmitters released (exocytosis)
6. neurotransmitters bind to receptors 
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Text13
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6. neurotransmitters bind to receptors 
7. signal initiated in postsynaptic cell 
Full
1. action potential arrives at axon terminal
2. voltage-gated Ca
2+
 channels open
3. Ca
2+
 enters presynaptic neuron 
4. Ca
2+
signals neurotransmitter vesicles to dock
5. neurotransmitters released (exocytosis)
6. neurotransmitters bind to receptors 
7. signal initiated in postsynaptic cell 

Tags: 6_5_neurons_synapses

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