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Q: How do actions potentials arise?
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Related questions

What is budgetary?

It is the creation and the monitoring of budgets (and taking actions when the needs arise).


What is budgetary planning?

It is the creation and the monitoring of budgets (and taking actions when the needs arise).


What are the various potentials used in antenna theory?

scaler electric potential vector magnetic potentials retarded potentials


What potentials are short-lived and decremental?

graded (local) potentials


Are graded potentials the same as local potentials?

Postsynaptic potentials are changes in the membrane potential of the postsynaptic terminal of a chemical synapse. Graded potentials are changes in membrane potential that vary in size, as opposed to being all-or-none, and are not postsynaptic potentials.


What are pacemaker potentials and the action potential they trigger?

Pacemaker potentials are automatic potentials generated and are exclusively seen in the heart. They arise from the natural "leakiness" of the membrane that pacemaker cells have, resulting in passive movement of both Na+ and Ca2+ across the membrane, rising the membrane potential to about -40mV. This results in a spontaneous depolarization of the muscle that has a rise in the curve that is nowhere near as steep as the action potential of other cells. Upon depolarization, the cell will return back to its resting membrane voltage, and continue the potential again.


Do action potentials become weaker with distance?

action potentials are non-decremental and do not get weaker with distance.


What potentials are short-livedlocal changes in membrane potential that can be either depolarized or hyperpolarized?

Graded Potentials


What has the author B R Mallinson written?

B. R. Mallinson has written: 'The assessment of vision and hearing by means of evoked potentials' -- subject(s): Auditory Evoked Potentials, Visual Evoked Potentials


How are standard electrode potentials determined for the half-cells listed in the Standard Reduction Potentials table?

The standard electrode potentials are determined on the basis of the Hydrogen scale.The standard electrode potential of Hydrogen is arbitrarily fixed as zero.


What has the author D Regan written?

D. Regan has written: 'Evoked potentials in psychology, sensory physiology and clinical medicine' -- subject(s): Evoked potentials (Electrophysiology) 'Human brain electrophysiology' -- subject(s): Brain, Electroencephalography, Electrophysiology, Evoked Potentials, Evoked potentials (Electrophysiology), Magnetic fields, Neurophysiology, Physiology


Graded potentials will not be initiated by?

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