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Biological & Biomedical Sciences
English (U.S.)
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Relationship Between Respiratory And Circulatory System (Essay Sample)


Option #2: The Relationship between the Respiratory System and the Circulatory System
The circulatory system is intimately linked to the respiratory system by the exchange of gas between them. Write a paper discussing this link. Be sure to address the following points:
Explain the exchange of oxygen and carbon dioxide between the lungs and blood.
What role does Fick's Law play in gas exchange?
Describe the impact of temperature, pH, BPG, and PCO2 on oxygen loading.
It has been suggested that loading the body with extra oxygen just before, or during, exercise can enhance performance. Explain how this concept works. Do you think it is possible to enhance performance by oxygen loading just before exercise? Why or why not? Would it be safe?
Essay Requirements:
Your cohesive and well-organized essay should be at least 3-4 pages in length, double spaced.
Include at least two scholarly references in addition to the course textbook. The CSU-Global Library is a good place to find these references.
Include a title page and a references page.
Follow the CSU-Global Guide to Writing and APA.


The Relationship between Circulatory and Respiratory Systems
Your Name
Your Institution of Affiliation
The combination of the Respiratory and the Circulatory Systems functions as a crucial pathway for the exchange of gases within our body. On one hand, it helps absorb oxygen and distribute all over the body in a process more commonly known as Inhalation. On the other hand, it also functions as a way to release Carbon Dioxide, which is a by-product of cellular respiration outside of the body, a process which we refer to as exhalation. While this comprises the general overview of the whole process, the specifics of it are rather complicated. Thus, in this paper a more specific discussion would be made on how the two systems help each other in completing this process. Other aspects such as Fick's law and Oxygen loading would also be discussed in the succeeding sections. Lastly, these particularities would be used to analyze some of the common applications of knowledge about how respiration works, that is, respiration and oxygen loading before exercise. All in all, the author of this paper knows that by having a thorough knowledge about how respiration works, it could then be applied towards daily practices to improve one's life.
The Gas Exchange
Despite of the numerous functions that the respiratory system has such as speaking and smelling, its most critical function is breathing. This process called respiration starts as the expansion of the person's diaphragm – a dome-shape muscle beneath the lungs – causes the pressure in the lungs to decrease and let air flow from the nostrils towards it. As the decrease in pressure causes the air to fill-up the lungs, thousands of small air sacs called alveoli, facilitates the entry of the oxygen into the bloodstream. The crucial function of the alveoli lies in its very structure and composition, which makes it easier for the diffusion of both gases from within and towards the outside of the system. As governed by Fick's law, these structures which are comprised of thin permeable membrane makes it possible to exchange gases through the differences in concentration between both sides of the alveoli walls.
In turn, these sacs are connected to larger s

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