Show:
The Voltage Gate
Electrical Current
The Synapse
The Post Synapse
100
The purpose of voltage-gated channels.
What is to allow specific ions into the neuron to create and end an action potential.
100
Which ion carries the electrical current?
What is Na+.
100
What is the synaptic cleft?
What is a small gap between neurons where information jumps from one neuron to the next.
100
What do neurotransmitters do once they leave the axon terminal?
What is they bind to post-synaptic receptors, ionotropic receptors, or metobotropic receptors.
200
When the neuron is hyperpolarized or depolarized (choose one), Na+ is allowed into the neuron through the voltage-gated Na+ channel.
What is depolarized.
200
Why does the Na+ move down the cell?
What is it moves down because there is less Na+ and it is negatively charged further down the axon.
200
Which type of synapse is most common (electrical or chemical)?
What is chemical.
200
Through which receptor does the neurotransmitter avoid coming in contact with an ion channel?
What is metabotropic receptor.
300
Which ion is allowed out of the neuron to help end an action potential?
What is K+.
300
What role does myelin serve in the electrical current?
What is it helps Na+ shoot through the axon.
300
Which channels in the pre-synaptic membrane are filled with synaptic vesicles containing neurotransmitters?
What is Ca++ channels.
300
Which type of post-synaptic receptor allows an Na+ channel to open?
What is ionotropic receptor.
400
How does the neuron return to resting potential?
What is the Na+ channels close, the K+ channels open, and the Na+/K+ pump continues to function.
400
Why does myelin help the electrical current?
What is each myelinated segment does not contain any channels or pumps, which allow ions in and out of the cell.
400
Which ion rushes into the axon terminal when Na+ arrives to depolarize the terminal?
What is Ca+2.
400
What is released from the intracellular portion of the metobrotropic receptor?
What is the G-protein.
500
When is action potential reset?
What is when the neuron reaches resting potential (-65mV).
500
What are the segments in between each of the myelinated segments of the axon called?
What is nodes of Ranvier.
500
What are the 3 synapse connections? And what do they connect?
What is axodendritic (axon to dendrite), axosomatic (axon to soma), and axoaxonic (axon to axon).
500
What connect membranes of 2 cells, used in electrical synapse?
What is connexon.