Brain Structures
Cells of the Nervous System
Action Potentials
Synaptic Transmission
Psychopharmacology
100
The structure that connects the brain hemispheres. What is cut in a split brain operation.
What is the corpus callosum?
100
The glial cells that myelinate axons.
What are schwann cells (PNS)? OR What are oligodendrocytes (CNS)?
100
An ion channel that requires a specific voltage to open.
What is a voltage-gated ion channel?
100
A postsynaptic receptor that is also the ion channel.
What is an ionotropic receptor?
100
A chemical that bonds to an ion channel.
What is a ligand?
200
The section of the brain that filters blood into cerebrospinal fluid (CSF).
What is the choroid plexus?
200
The glial cells that line the ventricles and provides the material for neuron precursors.
What are ependymal cells?
200
The voltage at which the the Na+ channel opens and the action potential starts.
What is the threshold of excitation?
200
A postsynaptic receptor that is separate from the ion channel.
What is a metabotropic receptor?
200
A drug that helps synaptic transmission
What is an agonist?
300
The part of the brain that controls emesis, also the one weak spot in the blood-brain barrier.
What is the area postrema?
300
The glial cells that "clean up" the CNS through phagocytosis.
What are microglia?
300
The period when the Na+ channels lock after they close.
What is the refractory period?
300
A charge that enters the cell and either brings it closer or further from the threshold of excitation.
What is postsynaptic potential (PSP)?
300
A drug that hinders synaptic transmission.
What is an antagonist.
400
The section of the brain that controls basic functions, evolutionarily the oldest part of the brain.
What is the hindbrain?
400
The part of the neuron where the action potential starts.
What is the axon hillock?
400
When the action potential propagates by "jumping" over the myelin sheaths.
What is saltatory propagation?
400
When PSPs come from a lot of different neurons.
What is spatial summation?
400
An agonist that binds to a side receptor on the GABA receptor protein. It suppresses CNS function.
What is alcohol/ETOH? OR What are barbiturates?
500
The subcortical structure that contains the visual relay center.
What is the thalamus?
500
The gap in between myelin sheaths.
What is a node of ranvier?
500
The active pump that pumps 3 Na+ ions out of the cell and pumps 2 K+ into the cell to restore both the chemical balance and electrical charges.
What is the sodium-potassium ion pump?
500
When the PSPs come from one neuron.
What is temporal summation?
500
An antagonist that binds to the muscarinic-acetylcholine receptor. Causes eyes to dilate.
What is atropine?
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