Respiratory System

2621 Words Mar 9th, 2011 11 Pages
Andrea English

Kaplan University
A&P II
Instructor: David Armoogam
September 10, 2010

The respiratory system helps with breathing, inhaling and exhaling. The respiratory systems main function is to give oxygen to the body’s cells and get rid of the carbon dioxide the cells produce. Breathing would be impossible without the respiratory system, which includes the nose, throat, voice box, windpipe, and lungs. In this essay I plan on explaining how the respiratory system functions as well as its parts.
The exchange of two gases called oxygen and carbon dioxide, this process is called respiration. As humans we need oxygen to survive and generate carbon dioxide. Since too much carbon dioxide is bad for our body we trade the carbon dioxide
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In our book Elsevier says, “Because this amount comes and goes regularly like the tides of the sea, it is referred to as the tidal volume (TV).” The book also states, “The largest amount of air taken in one expiration is known as the vital capacity (VC).” (Elsevier 2008). People that have diseases such as lung disease, emphysema, and heart problems have their tidal volume and vital capacity checked on a normal basis since conditions such as those can cause an abnormal amount of air going in and out of the lungs. When we use a lot of energy that requires us to use more oxygen since oxygen is what gives us the energy we need. The harder we work or run or do activities the more oxygen we need to intake to give to the millions of cells in the body. This is the reason when we run we breathe harder and deeper because our body is trying to keep up with us. When we breathe harder and faster our heart is also beating faster which is causing blood to pump more through the body each minute. Therefore the red blood cells make more trips and deliver more oxygen to the tissue cells also getting rid of more carbon dioxide than if we were doing nothing. Located in the medulla and pons of our brain is what is called the respiratory control center. In our book on page 382 it says, “These centers are in turn regulated by a number of inputs from receptors located in varying areas of the body. These receptors can sense the need for changing the
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