This video provides an insight into the role of Sodium - Potassium ATPase Pump. Watch this video to find out the need for an electochemical gradient in the heart, brain and kidneys! Timeline: 00:00 Introduction 00:44 Ions - Sodium and Potassium 01:20 Sodium - Potassium ATPase Pump 02:05 Heart Muscle - Electrochemical Gradient 03:40 the Brain - Electrochemical Gradient 04:50 the Kidneys - Electrochemical Gradient