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Describe the Importance of the Interaction Between the Respiratory and Cardiovascular System in Maintaining the Body's Internal Balance

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Portfolio Task: Module 2
Briefly describe the importance of the interaction between the respiratory and cardiovascular systems in maintaining the body’s internal balance

The respiratory and cardiovascular systems work together to supply oxygen to the body’s cells, remove carbon dioxide and regulate the Ph of the body’s fluids. This system of regulation is called homeostasis. (www.wiki.answers.com, 2013)

To understand how both systems interact requires fundamental knowledge of how each system functions independently.

The cardiovascular system is made up of blood, the heart and blood vessels which are divided into arteries, arterioles, capillaries, venules and veins. (www.livestrong.com, 2013)

Blood is a thick, red, slightly alkaline fluid and has 3 general functions; transportation, regulation and protection. There are 3 types of blood cell- red cells, white cells and platelets.
Red blood cells transports oxygen in a pigment called haemoglobin, from the lungs which have, by pulmonary gas exchange, diffused into the cells and carbon dioxide from the body tissue back to the lungs for exhalation, this system of exchange is called, external respiration. Blood helps regulate Ph, the body’s temperature and the water content of the cells, it also provides protection by its ability to clot and carries antibodies which help protect against disease. (Tortora & Derrickson, 2011)

The heart is the pump which circulates the blood around the body, called pulmonary circulation. The left side of the heart pumps oxygenated blood from the lungs through arteries, arterioles and capillaries which then diffuses into body tissues by means of capillary exchange. This system is called internal respiration. The right side of the heart pumps deoxygenated blood (carbon dioxide) from the body tissue, again by capillary exchange via capillaries, venules and veins back to the...

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