Home Biology Which Of The Following Specifically Describes The Movement Of Air Into And Out Of The Lungs?

Which Of The Following Specifically Describes The Movement Of Air Into And Out Of The Lungs?

by Lyndon Langley
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Which Of The Following Specifically Describes The Movement Of Air Into And Out Of The Lungs?

Which Of The Following Specifically Describes The Movement Of Air Into And Out Of The Lungs?

Pulmonary ventilation is the act of breathing, which can be described as the movement of air into and out of the lungs. This process also involves the exchange of oxygen in your blood for carbon dioxide from the lungs. In other words, it’s a way to get rid of waste products that would otherwise build up within your bloodstream and cause damage to your body.
In fact, this exchange between your heart and lungs is so important that if you were to stop it cold, your heart would lose its beat. This is known as cardiac arrest. Pulmonary ventilation is what keeps all the parts of your body running smoothly. It works both ways; without pulmonary ventilation, your lungs wouldn’t have any way to breathe either.
It’s actually pretty amazing how much a person uses their lungs to stay alive. For example, about 20% of our energy comes from the chemical reactions that occur in our bodies’ cells. If we stopped these cell processes altogether, we’d die within minutes. Another thing you may not know is that the majority of our bodies’ water is found within our lungs. Water makes up 60% of our bodies by weight, and it helps regulate every bodily function. Without water, your body starts to dry out and eventually dies. So again, it’s pretty amazing just how much water there is in your lungs!
Now that you’ve learned about the importance of lung function, let’s talk about some of the different types of ventilation techniques available today. There are two main categories: assisted respiration (mechanical) and unassisted respiration (natural). Natural respiration is when a person breathes through his or her nose with no help from mechanical devices. Mechanical respiration requires external equipment such as respirators, ventilators, and CPAP machines. These systems use gases and/or liquids to push oxygen through tubes into the lungs while expelling the same amount of oxygen-depleted air out of the lungs.
There are many different kinds of artificial respiration devices on the market today. One common type of device used during natural respiration is called an “iron lung.” This kind of apparatus was invented back in the 1930s. A patient could lie inside the iron lung and rest comfortably since they weren’t required to do anything at all. An attendant could simply press buttons on a control panel to change the pressure levels within the iron lung itself. As long as the patient remained completely still, he or she would receive the proper amount of oxygen.
Another popular type of respiratory technology is something known as positive-pressure ventilation (“PPV”). PPV systems require patients to wear masks over their noses and mouths. These masks contain small motors that pump oxygenated air directly into the lungs. The air then passes through filters before leaving the mask and going into the lungs. When using a positive-pressure system, doctors often recommend patients keep their heads elevated above 45 degrees. They also advise against sleeping while wearing one because doing so can lead to the buildup of fluid around the face mask.
CPAP stands for continuous positive airway pressure and refers to the use of a machine to deliver air directly into a person’s lungs. Patients who need CPAP therapy usually experience sleep apnea, where pauses in breathing occur throughout the night due to upper airway blockage. This causes the person to wake up suddenly and become extremely drowsy. With CPAP treatment, however, the flow of air is maintained constantly. While people who use CPAP therapy must remain awake most of the time, it has been shown to improve overall quality of life.
So now you understand why we need to breathe properly. But why does someone need assistance in order to breathe naturally? To answer that question, let’s take a look at another interesting point: The average human being inhales approximately 13 cubic feet of air per minute. On top of that, the lungs only account for 2 percent of a person’s total body mass. That means the lungs are responsible for roughly 10 times more volume than they themselves hold! Now imagine trying to live off 2 percent of your own body mass! Even for strong people, this is nearly impossible unless they’re capable of getting enough oxygen via other means.
We mentioned earlier that pulmonary ventilation works both ways. Your heart pumps about 5 liters of blood through your entire body each minute. However, your lungs only accept 2 liters worth of blood and expel 2 liters of blood back into your heart. If your lungs were somehow able to expand, there would be no room left in your blood stream for the extra blood. You wouldn’t even be able to survive for very long. Luckily, your lungs’ ability to fill up with air allows them to expand. Once expanded, the capacity of the lungs increases dramatically. During deep breaths, the diaphragms in your chest rise up and down, pushing the lungs further toward your throat. Because the lungs are larger than they need to be, this expansion brings oxygen to the rest of your body.

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