PHYSIOLOGY
NEUROTRANSMISSION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
The level of stimulation required to trigger a neural impulse.
|
|
reuptake
|
|
|
all-or-none response
|
|
|
threshold
|
|
|
refractory period
|
Explanation:
Detailed explanation-1: -The minimum stimulus required to trigger an action potential is known as the threshold stimulus. In order for an action potential to be produced, a stimulus (or combination of stimuli) must depolarize to the membrane from-70 mV to the threshold potential of-55 mV.
Detailed explanation-2: -Threshold of excitation(threshold): The level that a depolarization must reach for an action potential to occur. In most neurons the threshold is around-55mV to-65mV. 4. Action potential: A rapid depolarization and slight reversal of the usual membrane polarization.
There is 1 question to complete.