![dr najeeb lectures ecg dr najeeb lectures ecg](https://www.drnajeeblectures.com/wp-content/uploads/2017/01/EKG-Chest-Leads-e1485249725605-1200x800.jpg)
K starts rushes outside because intracellular K is normally more as compared to extracellular K. i.e., Ca and K-channels, both are activated. Now we can say that membrane lost its negative polarity and depolarized.Īfter depolarization of the cell, depolarization sensitive channels. This membrane potential is progressively going to positive value e.g.: +10mV. THP will become -60mV then -50mV, -40mV, and eventually becomes 0mV. As soon as it touches THP, the voltage-gated Na-channel opens and lots of Na comes in and progressively neutralizes the electronegativity. Thresh hold potential (THP) is a potential at which voltage-gated Na-channels in the membrane suddenly open, while in RMP that voltage-gated Na-channels were closed.Īfter stimulation to the cell, the voltage starts moving towards Thresh hold potential (THP) which is -70mV in the ventricular myocardial cell.
#Dr najeeb lectures ecg how to
Threshold Potential – Definition and How to Determine THP
![dr najeeb lectures ecg dr najeeb lectures ecg](https://celebritynews.pk/wp-content/uploads/2020/09/Dr-Najeeb-Wiki-2.jpg)
As soon as the myocardial cell is stimulated, some cations will move into to the cells, this positively charged ions moving into the cells will take RMP towards the less negative state, because cations will neutralize the electronegativity. Normally, resting ventricular myocardial cells are electrically negative inside.įor example the RMP of the ventricular myocardial cell is -90mV, which means that in the resting condition, the myocardial cell internally has a negatively polarized membrane. When the myocardial cell is not stimulated, it is in a state of resting membrane potential (RMP). Resting membrane potential (RMP) is the electrical voltage difference between the inside and outside of the membrane. The Function of Electrical Activity in Ventricular Myocardium The graphical representation of the electrical activity of the heart is called electrocardiography. Master Medical Sciences with crystal clear concepts. Not a member? Sign up now to access 800+ videos on Basic Medical Sciences & Clinical Medicine. As of 2021, he is around 57 years old.ECG Interpretation World’s Most Popular Lecture on EKG Interpretation Birthday / Age / Date of Birth / How old / DOB December 10, 1964.
![dr najeeb lectures ecg dr najeeb lectures ecg](https://i2.wp.com/arslanlibrary.com/wp-content/uploads/2017/09/EKG-or-ECG-Interpretation-Part-320.jpeg)
He doesn’t use power point presentations everything is hand drawn and explained through his writing process.