NEU 201 Final Exam UPDATED ACTUAL Questions
and CORRECT Answers (2026/2027)!!!
Most neurons are post mitotic. True or False? - ANSWER-
True
Golgi's reticular theory contends that - ANSWER-Neurons
are not individual, separate cells
Where do action potentials start? - ANSWER-Axon initial
segment
What type of cells make myelin in the CNS? - ANSWER-
Oligodendrocyte cells
What contributes to the direction of action potential
propagation? - ANSWER-Site of action potential initiation
and sodium channel kinetics
Potassium flowing out of a cell would have what effect on
the membrane potential? - ANSWER-Make it more
negative
,If membrane resistance increases - ANSWER-the length
constant increases and the time constant increases
In the ball and chain model of voltage-gated Na+ channel,
the ball is responsible for - ANSWER-Na+ channels
closing
Mammalian neocortex is organized into - ANSWER-layers
A given neurotransmitter can have more than one
receptor. True or False? - ANSWER-True
You are recording from a cell in the eye that id responsive
to light. Which feature of that cell's spikes is likely to
change with a stronger or weaker light? - ANSWER-
Frequency
Which kind of plasticity occurs during high frequency
stimulation at synapses with a high probability of
neurotransmitter release? - ANSWER-Depression
Which contributes to the negative resting potential? -
ANSWER-K+ leak channels, intracellular K+
concentration, K+ valence, K+ permeability
, The Cl- reversal potential is -70 mV. If Vrest is -70 mV,
what happens to the membrane potential if Cl- channels
open? - ANSWER-No change
What effect does decreasing extracellular Na+ have on
action potential amplitude? - ANSWER-Decrease
Because of spatial summation and passive conduction
properties, inputs that are closer to the area where action
potentials are generated will have more or less effect on
the neurons ability to reach threshold? - ANSWER-more
To calculate equilibrium potential of a single ion you need
to know.. - ANSWER-the concentration of that ion inside
the cell
The spinal cord is part of the peripheral nervous system.
True or False? - ANSWER-False
What happens when you change permeability during the
action potential? - ANSWER-PNa increases rapidly, PK
rises slowly
Chemical synapses - ANSWER-involve the release of
neurotransmitter
and CORRECT Answers (2026/2027)!!!
Most neurons are post mitotic. True or False? - ANSWER-
True
Golgi's reticular theory contends that - ANSWER-Neurons
are not individual, separate cells
Where do action potentials start? - ANSWER-Axon initial
segment
What type of cells make myelin in the CNS? - ANSWER-
Oligodendrocyte cells
What contributes to the direction of action potential
propagation? - ANSWER-Site of action potential initiation
and sodium channel kinetics
Potassium flowing out of a cell would have what effect on
the membrane potential? - ANSWER-Make it more
negative
,If membrane resistance increases - ANSWER-the length
constant increases and the time constant increases
In the ball and chain model of voltage-gated Na+ channel,
the ball is responsible for - ANSWER-Na+ channels
closing
Mammalian neocortex is organized into - ANSWER-layers
A given neurotransmitter can have more than one
receptor. True or False? - ANSWER-True
You are recording from a cell in the eye that id responsive
to light. Which feature of that cell's spikes is likely to
change with a stronger or weaker light? - ANSWER-
Frequency
Which kind of plasticity occurs during high frequency
stimulation at synapses with a high probability of
neurotransmitter release? - ANSWER-Depression
Which contributes to the negative resting potential? -
ANSWER-K+ leak channels, intracellular K+
concentration, K+ valence, K+ permeability
, The Cl- reversal potential is -70 mV. If Vrest is -70 mV,
what happens to the membrane potential if Cl- channels
open? - ANSWER-No change
What effect does decreasing extracellular Na+ have on
action potential amplitude? - ANSWER-Decrease
Because of spatial summation and passive conduction
properties, inputs that are closer to the area where action
potentials are generated will have more or less effect on
the neurons ability to reach threshold? - ANSWER-more
To calculate equilibrium potential of a single ion you need
to know.. - ANSWER-the concentration of that ion inside
the cell
The spinal cord is part of the peripheral nervous system.
True or False? - ANSWER-False
What happens when you change permeability during the
action potential? - ANSWER-PNa increases rapidly, PK
rises slowly
Chemical synapses - ANSWER-involve the release of
neurotransmitter
