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Depolarisation occurs as ions cross the membrane of a cell or a nuron. Ions such as NA+ or K+ make depolarisation happen. Depolarisation can work on a threshold potetional such as in the heart. Threshold potetional A threshold potetional is a self- regenerating wave of electrical current depolairsation. In the hearts cells depolarisation happends when the cells of the heart are brought to a voltage threshold because of NA+ ions.Soduim NA+ is a soft, silvery-white powerderd ion. Soduim is found in sea water and also in rocks. Liquid soduim is used for depolarisation of the heart and is a clear liquid.
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When do droughts occur in America?
Droughts in America usually occur in the summer and hot seasons
The chance that a a given event will occur usually expressed between the number 0 will not and 1 the event will occur?
Probability
Can innovation occur without personal freedom?
yes it can
When and in what type of social environment did the accusations of witchcraft occur?
the past
How often do elections occur in Greece?
every 4 years
What changes occur in the neuron?
Neurons undergo depolarization and repolarization when stimulated. The sodium and potassium channels open.
What is the stage in an action potential that immediately follow depolarisation?
After depolarization repolarization occur whcih then again lead to resting potentiol
The greater influx of sodium ions results in what of the membrane?
depolarization
Why don't the terms depolarization and action potential mean the same thing?
Depolarization occurs when a stimulus opens sodium channels which allow more sodium to go into the membrane making it less negative and more positive (toward reaching threshold). An action potential can only occur once the membrane reaches threshold which means it has reached the level needed through depolarization. An action potential is a brief reversal in polarity of the membrane making the inside more positive and the outside more negative, the reverse occurs again once the membrane reaches resting potential.
What is depolarization of a neurotransmitter?
Depolarization stimulates the release of the neuro-transmitter from the terminal end of the neuron.
What molecules cause polarization and depolarization?
Sodium ions cause depolarization and potassium ions cause repolarization.
What is an antonym for polarization?
Depolarization
The QRS complex in an electrocardiogram results from?
An Electrocardiogram of a single heart beat shows three distinct waves. These are the P, QRS and T Waves. The QRS wave (normally the largest spike) in the electrocardiogram, is that of the ventricles depolarizing and contracting.
What is a non - Depolarization?
Non depolarization means the muscle relaxant effect will stay in the body. needs to reverse with prostigmine and atropine.
What is ventricle depolarization?
Type your answer here... abnormally slow depolarization of the ventricles would most change the shape of the ?in an ekg tracing
Does the p wave in an ekg indicate atrial depolarization?
No it does not. Atrial repolarization is generally not visible on the telemetry strip because it happens at the same time as ventricular depolarization (QRS complex). The P wave represents atrial DEpolarization (and atrial systole). Atrial repolarization happens during atrial diastole (and ventricular systole).
What is self propagated depolarization?
polarized
