Epidemiology Lab Report Essay

During the lab we took and measured the heartbeat of my lab partner twice and the blood pressure twice in different situations to measure the differences that occur. At the start my lab partner was calm resulting in the blood pressure to be around 125/59 with 55 beats per minute. The second time we did it, the numbers were fairly similar 126/59 and 62 beats per minute. At the beginning there is no action potential occurring or the pacemaker is not racing to make the heart beat quicker because the body is not using much energy since it is basically at a resting state. You can detect the heart beats by using the QRS EKG method where each one can represent a heartbeat that has occurred. There are fairly quick when they occur and by being able to view
The change of voltage than opens the gradient of NA which allows many to go in and then a K+ channel has to open as well to get it back to its normal stage. The heart beat occurs due to an electrical impulse that moves through the system of the heart. We can insure that the electrical impulses occur through the EKG. The electrical impulses are important because the voltage is what allows for the pacemaker to beat quicker or slower. In the heart Action potential proceeds around the heart which causes the heart to beat around 60 to 100 beats per minute. When checking with the EKG the heart beats per minute averaged around 72 heart beats per minute. We know that the action potential occurs through every phase it passes through the heart due to the fact that the heart contracts in and then relaxes as a beat occurs, and it can be seen through the EKG. It first begins in the SA node where it starts the impulse, then it is delayed at the Av node, then the impulses passes the heart apex and ventricular excitation begins, which leads to the ventricular excitation to be complete. As the impulses move around the heart it allows us to track the blood flow of the heart and the changes that occur in voltage or other areas within the