Due Aug 24 at 11:59pm
Points 50
Questions 25
Time Limit 60 Minutes
Score for this quiz: 40 out of 50
Question 1
pts
The absolute refractory period refers to when the neuron .
is poisoned
cannot fire again because the sodium channels are unable to open
can fire again but only to a stronger-than-threshold stimulus
is nondecremental
Question 2
pts
Ion channels must be reset during action potential before .
the sodium-potassium pump will function
a neuron can fire again
the all-or-none law can occur
resting potential can be reached
Question 3
pts
The cell body is filled with a liquid called .
glial material
organelle
, soma
cytoplasm
Question 4
pts
Which of the following is prompted by a neurotransmitter docking with a receptor site?
Ionic exchanges are induced between neurons.
An action potential is initiated.
Ion channels open, directly or indirectly.
Ion channels fuse with the cell membrane.
Question 5
pts
MAO inhibitors in the synapse.
reduce the activity of depressants
decrease the amount of monoamine oxidase
inhibit the amount of degrading enzymes
increase the amount of serotonin, norepinephrine, epinephrine, and dopamine
Question 6
pts
One property of action potentials is that they move in one direction down the axons of neurons.
This occurs due to the .
electrostatic pressure
rate of diffusion
relative refractory period
absolute refractory period
Question 7
pts