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Neuroscience: Chapters 4 & 5 Quiz Stats

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Description Term % Correct
A procedure in which high-resolution images are constructed from the measurement of waves that H2 atoms emit when they are activated by radio-frequency waves in a magnetic fieldMRI
76.7%
Produces images representing increases in oxygen flow in the blood(BOLD signal) to active areas of the brainfMRI
73.3%
Monoamine, catecholamine, associated with drugsDopamine
72.1%
Amino acid neurotransmitter; most prevalent inhibitory nt. in CNSGABA
70.9%
A massive but momentary reversal of the membrane potential from about -70 mV to about +50 mVAction Potential
67.4%
Amino acid neurotransmitter; most prevalent excitatory nt. in CNSGlutamate
64%
Monoamine, indolamine, associated with mood regulation Serotonin
61.6%
Small-molecule neurotransmitter, synthesized by adding an acetyl group to a choline molecule by adAcetylcholine
61.6%
Provides functional brain images rather than structural brain images using 2-DGPET Scan
61.6%
Gaps between adjacent myelin segments that expose axon and allow ions to pass throughNodes of Ranvier
59.3%
Steady membrane potential of about -70 mV in a neuronResting Potential
58.1%
Packaging for neurotransmitter moleculesSynaptic Vesicles
55.8%
A computer-assisted x-ray procedure that can be used to visualize the brain and other internal structures of the living bodyCT Scan
44.2%
Receptors that are associated with signal proteins and G-proteinsMetabotropic Receptors
37.2%
Specialized pores in the neural membrane, each type of which is specialized for the passage of particular ionsIon Channels
36%
A brief period after the initiation of an action potential during which it is impossible to elicit a second oneAbsolute Refractory Period
36%
Monoamine, catecholamine, associated with stress responsesNorepinephrine
36%
Description Term % Correct
When postsynaptic potentials produced in rapid succession at the same synapse sum to form a greater EPSPTemporal Summation
34.9%
Receptors that are associated with ligand-activated ion channelsIonotropic Receptors
33.7%
Postsynaptic depolarizationsEPSPs
31.4%
Nodules of various shapes that are located on the surgace of many dendritesDendritic Spines
31.4%
The process of neurotransmitter releaseExocytosis
31.4%
Postsynaptic hyperpolarizationsIPSPs
30.2%
A method of neuronal integration of signals; local EPSPs that are produced simultaneously on different parts of the receptive membrane whose sum produces a greater EPSPSpatial Summation
29.1%
Ion channels that open or close in response to the changes in the level of the membrane potentialVoltage-Activated Ion Channels
29.1%
Narrow spaces between adjacent neurons that are bridged by fine tubular channelsGap Junctions
29.1%
The period during which it is possible for the neuron to fire again, but only by applying higher than normal levels of stimulationRelative Refractory Period
27.9%
Level of depolarization required to create an action potential, usually ~ -65 mVThreshold of Excitation
26.7%
Energy-consuming mechanisms int he cell membrane that continually exchange 3Na+ ions inside the neuron for 2K+ ions outside the neuronSodium-Potassium Pumps
20.9%
A gene inserted into cells to track which ones are activecFos
18.6%
Example of an endocannabinoid nt. Anandamide
10.5%
Uses infusion of a radio-opaque dye into a cerebral artery to visualize the cerebral circulatory system during x-day photographyCerebral Angiography
9.3%
When a coolant is pumped through an implanted cryoprobe, neurons near the tip are cooled until they stop firingCryogenic Blockade
7%

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