Science Quiz / Neuroscience: Chapters 4 & 5

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

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

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