Science Quiz / Neuroscience: Chapters 4 & 5

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QUIZ: Can you name the key terms from Chapters 4 & 5?

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DescriptionTerm
Packaging for neurotransmitter molecules
When postsynaptic potentials produced in rapid succession at the same synapse sum to form a greater EPSP
Provides functional brain images rather than structural brain images using 2-DG
Amino acid neurotransmitter; most prevalent inhibitory nt. in CNS
Gaps between adjacent myelin segments that expose axon and allow ions to pass through
Amino acid neurotransmitter; most prevalent excitatory nt. in CNS
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 field
Energy-consuming mechanisms int he cell membrane that continually exchange 3Na+ ions inside the neuron for 2K+ ions outside the neuron
Receptors that are associated with ligand-activated ion channels
Uses infusion of a radio-opaque dye into a cerebral artery to visualize the cerebral circulatory system during x-day photography
A brief period after the initiation of an action potential during which it is impossible to elicit a second one
Ion channels that open or close in response to the changes in the level of the membrane potential
Monoamine, indolamine, associated with mood regulation
Steady membrane potential of about -70 mV in a neuron
Small-molecule neurotransmitter, synthesized by adding an acetyl group to a choline molecule by ad
Postsynaptic hyperpolarizations
Receptors that are associated with signal proteins and G-proteins
DescriptionTerm
A computer-assisted x-ray procedure that can be used to visualize the brain and other internal structures of the living body
When a coolant is pumped through an implanted cryoprobe, neurons near the tip are cooled until they stop firing
Level of depolarization required to create an action potential, usually ~ -65 mV
Postsynaptic depolarizations
Nodules of various shapes that are located on the surgace of many dendrites
Monoamine, catecholamine, associated with stress responses
Example of an endocannabinoid nt.
A gene inserted into cells to track which ones are active
Specialized pores in the neural membrane, each type of which is specialized for the passage of particular ions
Monoamine, catecholamine, associated with drugs
A massive but momentary reversal of the membrane potential from about -70 mV to about +50 mV
The process of neurotransmitter release
The period during which it is possible for the neuron to fire again, but only by applying higher than normal levels of stimulation
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 EPSP
Produces images representing increases in oxygen flow in the blood(BOLD signal) to active areas of the brain
Narrow spaces between adjacent neurons that are bridged by fine tubular channels

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