Which of the following neuron enters a dorsal nerve root of the spinal cord?
a) motor neuron
b) sensory neuron
c) interneuron
d) all of these
The concentration of K+ ions is…..….times greater in the fluid inside the cells than outside the cell.
a) 10
b) 20
c) 30
d) 3
The concentration of Na+ ions is…..….times greater in the fluid outside the cells than inside the cell.
a) 10
b) 20
c) 30
d) 3
Which of the following organic ions are present inside the neuron cytoplasm?
a) amino acids
b) proteins
c) RNA
d) all of these
What is the overall charge on neuron membrane during resting potential?
a) more positive inside
b) more positive outside
c) more negative outside
d) neutral
The period of recovery of nerve fiber is called……period.
a) salutatory
b) refractory
c) polarization
d) neutralization
