action potential stuck and just need a look over make sure its correct An action

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action potential stuck and just need a look over make sure its correct

An action potental wll be generatesd f the membrane gets eed suficenty GPs can be excitatory or inhibitory More than one GP can overlap each other and become aOe-summadhr CHANGES IN MEMBRANE POTENTIAL ARE CAUSED BY THREE EVENTS: De pOtati4-the inside of the membrane becomes less negative ichin paknthal-the membrane returns to its resting membrane potental the inside of the membrane becomes more negative than the resting ACTION POTENLAS The generation of APs are based on Selective eeimacai'and Nat kt lectrochenic elmeb and Nat/K+ of that exist across an intact PM - In excitable cells, changes in the permeability of the PM due to the opening/dlosing of gated ion channels can produce APs Is measured as a brief reversal of membrane potential with a total ampli - Action potentials are only generated by muscle cells and neurons -An action potential in the axon of a neuron =-- tude of aprox. 100 mV THREE PHASES OF AN ACTION POTENTIAL: Lanid depolan -1st phase of an AP membrane undergoes suddennereas to Nat las -3rd phase where the membrane is even more negative than at rest and approaches EK+ phenomenon: action potentials either happen completely, or not at all once threshold is met. Threshold, which MUST be met first is when the membrane is depolarized by 15 to 20 mV AP Wave is formed by rapid depolarization of the membrane by Nat influx; followed by rapid by K+ efflux

Explanation / Answer

it is correct based on the blanks filled.

Polarisation phenomenon.

eflux of K+ ions

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