The Heartbeat

Summary
A pacemaker is a small device that is attached, with surgery, to a persons heart. The heart controls the pumping of blood throughout the body by transferring electronic signals throughout itself to shut and close its multiple valves. But as a person ages, this system can grow weaker over time.  Causing problems like arrhythmia, an irregular heat beat. The pace maker assists the heat by regulating its electronic pulses, or even sending out its own electronic pulses. A person with arrhythmia who doesn't have pacemaker can often become fatigued and tired easily. a result of not getting enough oxygen to the muscles. But a pacemaker can help a person go back to a more active life style. The pulse starts at the SA node. First, it causes the atria to open and close. Then, the pulse travels to the ventricles that also open and close. These ventricles contracting are what push the blood throughout the body. Newer pacemakers can monitor your heart rate, blood pressure, temperature, and other factors. From the data it collects, it can adjust your heart rate accordingly.

Connection
This connects to both the pulmonary and the circulatory system. We have discussed the electronic pulses that control the opening and closing of the valves. These valves push the flow of blood throughout the body. This connects to the circulatory system by improving the rate that oxygen enters the body. With an increased heart rate, more oxygen can enter sooner and be delivered to the muscles sooner. This could also connect  to our cardiovascular lab report. For the report, we had to measure our heart rate and breathing rate. That is what a pacemaker can do.

 http://www.nhlbi.nih.gov/health/health-topics/topics/pace/