The action potential is a sudden positive shift in the cardiomyocyte's cellular membrane potential, termed depolarization. Depolarization not only initiates contraction within the affected cardiomyocyte (Described in Cardiac Excitation-Contraction Coupling), but also initiates depolarization of adjacent cardiomyocytes.
Polar Coordinates The coordinate system which depicts the points from the pole to the certain distance at a particular angle is known as âpolar coordinatesâ. The positive horizontal axis in which that particular angle rotates is named as âpolar axisâ.
(a) Convert into polar coordinates. In this case there really isnât much to do other than plugging in the formulas for x and y (i.e. the Cartesian coordinates) in terms of r and (i.e. the polar coordinates).[ Return to Problems ]. (b) Convert into Cartesian coordinates.a) Convert into polar coordinates. In this case there really isnât much to do other than plugging in the formulas for x and y (i.e. the Cartesian coordinates) in terms of r and (i.e. the polar coordinates).