What two events render a segment of an axon temporarily insensitive or refractory to another stimulus?

Absolute refractory period

Relative refractory period

Explanation:

While an action potential is in progress, another one cannot be initiated. That effect is referred to as the refractory period. There are two phases of the refractory period: the absolute refractory period and the relative refractory period. During the absolute phase, another action potential will not start. This is because of the inactivation gate of the voltage-gated Na+ channel. Once that channel is back to its resting conformation (less than -55 mV), a new action potential could be started, but only by a stronger stimulus than the one that initiated the current action potential. This is because of the flow of K+ out of the cell. Because that ion is rushing out, any Na+ that tries to enter will not depolarize the cell, but will only keep the cell from hyperpolarizing.

answer:

to with mild choking in an adult or child over 1 year old: encourage them to keep coughing to try to clear the blockage. ask them to try to spit out the object if it's in their mouth. don't put your fingers in their mouth to them as they may bite you accidentally.

explanation: