Abstract

The purpose of this lab is to show how the body works together in order to function as one. What this means is that to create a system that functions together the different parts have to do their own part. For example the lungs take the air and put it in the bloodstream, from their the heart pumps the blood to the muscles. Once the muscles use the air they give their emissions back to the blood which then goes out of you. Air and oxygen are needed to make the muscles work. If their is not enough they will not function. When you need to move faster then the amount of sugar you have. Your body will split the sugars into two. The only problem is that you will pay for it after. Whats left behind is lactic acid, when it stays in your muscles they get sore and hard to move.

When doing the expirement we started with a very mild activity which was laying down doing minimal movement. The results were low because the body didn't have to work hard. When doing the medium activity the person had to walk for five minutes. The pulse and heart beat had gone up because the person had to pump more blood to the legs because they were moving. The hardest was the best because all the reading were high lots of sweat and respiration and the temperature was really high because the person had to run for five minutes. the hard activity was the most costly one because it took the most energy.

This expirement is simple all you need is a couple of thermometers, blood pressure gauge and a watch. Learning how the body works is very interesting because you are learning about yourself.