For my final seminar topic I will be talking about the various types of differential equations in relation to the heart as well as pacemakers. First by discussing some general information about the anatomy and functions of the heart so that we can better understand later on. Followed by a brief recap of differential equations. Most of the equations in my talk look very complicated so it is important that we know how to look at them properly and identify what kind of equations they really are. Finally, then getting into how we can use these equations to make models and graphs of particular heart related functions. Hope to see you there.