Answer: hyperpolarized
An axon that is more negative than the resting membrane potential is said to be _______.
Hyperpolarization is a change in a cell's membrane potential that makes it more negative. It is the opposite of a depolarization. It inhibits action potentials by increasing the stimulus required to move the membrane potential to the action potential threshold. Hyperpolarization …
The potassium channels exhibit a delayed reaction to the membrane repolarisation and even after the resting potential is achieved some potassium continues to flow out …
Repolarization typically results from the movement of positively charged K + ions out of the cell. The repolarization phase of an action potential initially results in hyperpolarization attainment of a membrane potential termed the afterhyperpolarization …
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During the rising phase the membrane potential depolarizes (becomes more positive). The point at which depolarization stops is called the peak phase. At this stage the membrane potential reaches a maximum. Subsequent to this there is a falling phase. During this stage the membrane potential becomes more negative returning towards resting potential.
The refractory period in a neuron occurs after an action potential and generally lasts one millisecond. An action potential consists of three phases. Phase one is depolarization. During depolarization voltage-gated sodium ion channels open increasing the neuron's membrane conductance for sodium ions and depolarizing the cell's membrane potential (from typically -70 mV toward a positive potential). In other words the me...
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