The Respiratory System

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The respiratory system is a complex organ structure of the human body anatomy, and the primary purpose of this system is to supply the blood with oxygen in order for the blood vessels to carry the precious gaseous element to all parts of the body to accomplish cell respiration. The respiratory system completes this important function of breathing throughout inspiration. In the breathing process inhaling oxygen is essential for cells to metabolize nutrients and carry out some other tasks, but it must occur simultaneously with exhaling when the carbon dioxide is excreted, this exchange of gases is the respiratory system's means of getting oxygen to the blood (McGowan, Jefferies & Turley, 2004).

To explain normal functioning of the respiratory system, it is best to know that the respiratory system in human beings is comprised of the upper respiratory tract that consists of the nasal passages, pharynx and the larynx. The lower respiratory tract is composed of the trachea, the primary bronchi and the lungs. The primary function of the respiratory system is to supply oxygen to the blood in the body. Oxygen is delivered to all parts of the body. The respiratory system does this while breathing is taking place. During the process of breathing, one inhales oxygen and exhales carbon dioxide. This exchange of gases within the thoracic cavity takes place at the alveoli within the body (Grant, 2004). The average adult's lungs contain about 600 million of these air-filled sacs that are surrounded by capillaries (Grant, 2004). The inhaled oxygen passes into and through the alveoli and is diffused through the capillaries into the arterial blood. Meanwhile, the waste-rich blood from the veins releases the carbon dioxide into the alveoli. The carb...

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...over 1.8 million Americans with the disease, which ranks fifteenth among chronic conditions that cause limitations of activity. Smoking usually causes the disease, but a small number of cases are caused by an inherited defect (Swartout, 2002).

In conclusion, this is how the respiratory system functions normally day-by-day as well as how it keeps homeostasis with its contributing factors. Also, there are several ways in which the respiratory system can enhance or promote health and wellness as described in such ways as activities of daily living and other areas of occupation. The respiratory system can affect performance skills have also been described in the above passages through examples that apply to our everyday lives. And finally research was provided on how the respiratory system can negatively affect us throughout our lifespan from conception to death.

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