After action potential, membrane regains polarity and becomes ………on outside and…….on inside.
a) neutral-electropositive
b) electropositive-neutral
c) electropositive-electronegative
d) electronegative-electropositive
Explanation this is called repolarization
How many sodium ions will be pumped out when 10-pottassium ions transported inward of resting membrane potential?
a) 15
b) 10
c) 20
d) 5
Explanation for every two potassium, three sodium ions are moved
After an action potential, nerve fiber undergoes a period of recovery in which it regains its original ionic distribution and polarity; it is called……..period.
a) recovery
b) salutatory
c) refractory
d) polarity
Explanation during this period, nerve prepares itself for the next stimulation
The depolarization of the post synaptic membrane generates action potential, it is
a) EPSP
b) IPSP
c) acetylcholine
d) glutamate
Explanation In neuroscience, an excitatory postsynaptic potential is a postsynaptic potential that makes the postsynaptic neuron more likely to fire an action potential.
How many types of nerve impulses?
a) two
b) three
c) four
d) five
Explanation 1. Continuous impulse and 2. Saltatory impulse
In which of the following neuron fibers, continuous impulse produced?
a) myelinated
b) non-myelinated
c) both a and b
d) none of the above
Explanation the K+ and Na+ ions can move across the membrane all along the length of the neuron so action potential flows as a wave.
