Blood pressure towards the brain during rest hours is…….mm/min.
a) 750
b) 850
c) 950
d) 1050
In which of the following nerve fiber, the speed of nerve impulse is faster?
a) myelinated
b) non-myelinated
c) both a and b
d) none of the above
Explanation it is due salutatory conduction and prevention of loss of energy by insulating sheath
How much time, the speed on nerve impulse is faster in myelinated neuron than non-myelinated neurons?
a) 10 times
b) 20 times
c) 100 times
d) 200 times
Speed of the of nerve impulse depends upon diameter of fiber; which fibers conduct faster impulse?
a) thick fiber
b) thin fiber
c) intermediate
d) very thin
Explanation it is because resistance to electrical current flow is inversely proportional to the cross sectional area of the conductor such as wire
In which of the following nerve fiber, the impulse will move faster?
a) myelinated and thin in diameter
b) non-myelinated and thin in diameter
c) myelinated and thick in diameter
d) non-myelinated and thin in diameter
Explanation it is due to prevention of loss of energy due to insulation and less resistance to the flow of current due to greater cross sectional area
In which of the following nerve fiber, the impulse will move slower comparatively?
a) myelinated fiber and thin in diameter
b) non-myelinated fiber and thin in diameter
c) myelinated fiber and thick in diameter
d) non-myelinated fiber and thin in diameter
Explanation: it is due to loss of energy due to no insulation and resistance to the flow of current due to less cross sectional area
