Cardiac Cycle | Mechanism of Heart Excitation | MDCAT Biology | NEET Biology | Urdu/Hindi

The cardiac cycle is the performance of the human heart from the ending of one heartbeat to the beginning of the next. It consists of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, following a period of robust contraction and pumping of blood, dubbed systole. In this Lecture the detail phenomena of cardiac cycle and mechanism of heart excitation is discussed well. In this lecture you will also find the various pacemakers involves in contraction of heart. This channel is created by Dr. Muhammad Sohail, PhD Zoology ( Newcastle University, UK/ Punjab University, Lahore) working as Professor at Higher Education Department, Punjab. He has 15 years of teaching experience in various renown institutions. The main purpose of this channel to provide free education to all who actually grow with biology field. Please subscribe and share to contribute in knowledge sharing. Thanks for watching we are on social media as well link for Facebook page is   / exploreteachingandlearning   Cell#+923214283592 #mdcatbiology #neetbiology #drsohaillectures