CBNS 121 LECTURES 14 & 15 QUESTIONS AND ANSWERS GRADED A+
______ is mediated by an ___________ in calcium concentration in the _______ _____________ cell -
Answers LTP
Increase
Post synaptic
______ is a smaller ________ in postsynaptic calcium concentration, accompanied by a
____________ in the number and sensitivity of post synaptic ____________ - Answers LTD
Increase
Reduction
Receptors
Sensitizing repetitively is known as: - Answers Facilitation
LTD and LTP are associated with: - Answers Memory
What is synaptic facilitation? - Answers Increase in synaptic strength that results when action
potentials occur in rapid succession
The amplitude of the postsynaptic potential may increase which is known as ________________ -
Answers Facilitation
When vesicles are getting depleted, this is known as ___________ - Answers Depression
There are three forms of short term plasticity: - Answers Facilitation, augmentation and PTP
Transmitter release can be subject to synaptic _____________ if the number of ____________
released by stimuli is __________ - Answers Depression
Quanta
Large
What is tetanus? - Answers Long high frequency of stimuli
Tetanus can result in synaptic _____________ - Answers Depression
post-tetanic potentiation (PTP): - Answers An increase in the rate of spontaneous transmitter
release from the nerve terminal
Augmentation: - Answers Enhancement of transmitter release by repetitive stimulation
augmentation is ____________ than facilitation - Answers Slower
, Augmentation and facilitation can result in an increase in synaptic potential ______________. -
Answers Amplitude
Facilitation, depression, augmentation, and PTP are: - Answers Short term changes in synaptic
efficiency
Short term changes in synaptic efficiency is due to the ______________ or _______________ in the
number of __________ transmitter released from presynaptic terminals. - Answers Increase
Decrease
Quanta
Fractional release is dependent on the amount of ____________ that enters the terminal through
___________ ____________ channels - Answers Calcium
Voltage gated
More calcium means more ____________ release - Answers Transmitter
_____________ is related to increasing calcium left over from the previous stimuli. The ___________
amounts trigger __________, this increases the probability of increased cytoplasmic calcium
contributing to facilitation. - Answers Facilitation
Residual
Release
After a stimulus is applied after 2-3 times, the probability of transmitter release starts to
_______________ - Answers Decrease
_____________ of synaptic potential is seen only after a __________ ____________ release, and
depletion of _____________ from the nerve terminal. - Answers Depression
Large quantal
Vesicles
Large quantal release has a large ____________ entry, so calcium may contribute in _____________
in calcium current - Answers Calcium
Reduction
Different neurons have differing ______ _____________ - Answers Gene expressions
Short term sensitization: - Answers a form of sensitization that lasts a relatively short period of
time
______ is mediated by an ___________ in calcium concentration in the _______ _____________ cell -
Answers LTP
Increase
Post synaptic
______ is a smaller ________ in postsynaptic calcium concentration, accompanied by a
____________ in the number and sensitivity of post synaptic ____________ - Answers LTD
Increase
Reduction
Receptors
Sensitizing repetitively is known as: - Answers Facilitation
LTD and LTP are associated with: - Answers Memory
What is synaptic facilitation? - Answers Increase in synaptic strength that results when action
potentials occur in rapid succession
The amplitude of the postsynaptic potential may increase which is known as ________________ -
Answers Facilitation
When vesicles are getting depleted, this is known as ___________ - Answers Depression
There are three forms of short term plasticity: - Answers Facilitation, augmentation and PTP
Transmitter release can be subject to synaptic _____________ if the number of ____________
released by stimuli is __________ - Answers Depression
Quanta
Large
What is tetanus? - Answers Long high frequency of stimuli
Tetanus can result in synaptic _____________ - Answers Depression
post-tetanic potentiation (PTP): - Answers An increase in the rate of spontaneous transmitter
release from the nerve terminal
Augmentation: - Answers Enhancement of transmitter release by repetitive stimulation
augmentation is ____________ than facilitation - Answers Slower
, Augmentation and facilitation can result in an increase in synaptic potential ______________. -
Answers Amplitude
Facilitation, depression, augmentation, and PTP are: - Answers Short term changes in synaptic
efficiency
Short term changes in synaptic efficiency is due to the ______________ or _______________ in the
number of __________ transmitter released from presynaptic terminals. - Answers Increase
Decrease
Quanta
Fractional release is dependent on the amount of ____________ that enters the terminal through
___________ ____________ channels - Answers Calcium
Voltage gated
More calcium means more ____________ release - Answers Transmitter
_____________ is related to increasing calcium left over from the previous stimuli. The ___________
amounts trigger __________, this increases the probability of increased cytoplasmic calcium
contributing to facilitation. - Answers Facilitation
Residual
Release
After a stimulus is applied after 2-3 times, the probability of transmitter release starts to
_______________ - Answers Decrease
_____________ of synaptic potential is seen only after a __________ ____________ release, and
depletion of _____________ from the nerve terminal. - Answers Depression
Large quantal
Vesicles
Large quantal release has a large ____________ entry, so calcium may contribute in _____________
in calcium current - Answers Calcium
Reduction
Different neurons have differing ______ _____________ - Answers Gene expressions
Short term sensitization: - Answers a form of sensitization that lasts a relatively short period of
time
