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The lungs are the only organs that can float on water
Each of your lungs contains about 300 million balloon-like structures called alveoli, which replace the carbon-dioxide waste in your blood with oxygen. When these structures are filled with air, the lungs become the only organs in the human toàn thân that can float on water.
In fact, medical examiners use the so-called "lung float test" during autopsies to lớn determine if a baby wasstillborn (died in the womb). If the lungs float, the baby was born alive; if the lungs don't float, the baby was stillborn. This method is accurate 98 percent of the time, according to lớn a 2013 study in the International Journal of Legal Medicine.
2. Your lungs are not sterile or germ-free, even in health
Studies have demonstrated thatthe lower respiratory tractis replete with diverse communities of bacteria both in health & in diseased states. However, it might be fair to lớn assume that they are norma flora, or microbes that normally live inside our bodies that vị not cause disease.
3.The common cold can be caused by hundreds of different viruses
The common cold is by far the most prevalent respiratory-system illness today. There are actually more than200 virusesthat can cause a cold, including the human coronavirus and the respiratory syncytial virus.
4.Your nose is a filter, heater & a humidifier
The nose has small bone-like shelves called turbinates that project from the lateral wall of your nose. Turbinates are lined with lots of blood vessels, heat from which warms air passing by to body temperature. They are also lined with goblet cells that secrete mucus, & these help to humidify air as it passes by. Inhaled particles và microbes are trapped in the sticky mucus & moved khổng lồ the back of your throat by the “escalator” to be swallowed, where gastric juices destroy them.
5.Coughing, sneezing và yawning are natural mechanisms
Coughing & sneezing keep your lungs clear of foreign substances and invaders you might unknowingly inhale. Also, yawning helps our breathe more oxygen to lớn lungs and in case our brain senses the shortage of oxygen.
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Some air never leaves your lungs
You have a small amount of air, called residual volume, that always stays inside your lungs. This is important because it prevents your smaller airways and alveoli from collapsing. It keeps them xuất hiện just a little bit so that the next breath comes easier, sort of lượt thích a small balloon that has already been blown up once or twice. So, after you exhale, you can always push more are out of your lungs. At a minimum, about 1,200 ml of air remains in your lungs. This is a good thing.
7.It is possible to live with just one lung
Although it limits your physical ability, it will not stop you from leading a normal life. In fact, many people in the world are living with just one lung.
8.When something is not right, a switch occurs at the nostrils khổng lồ exchange their work
Usually, right nostril will seem predominant during the daytime, and the left nostril will appear paramount during the night time. You can sense this shift around the dawn or at the time of sunset.
9.Children who breathe directly from mouth will likely to develop a lisp while talking
The human nose has four stages of the filtration The hairs inside the nose help filtering the unwanted things from entering the lungs. When we breathe through the mouth, the air directly gets into stage 4 by surpassing all 3 stages. It results in tonsillitis, ear infections, respiratory tract infections & sore throat. Breathing through mouth results in the bladder shrinkage that creates an urge khổng lồ urinate in the middle of the night.
In order to balance the breath between each of the nostrils, our toàn thân will automatically change sides for every 30 minutes.
10.You đại bại a lot of water just by breathing
Breathing allows you lớn take in the oxygen your cells need and expel carbon-dioxide waste. But when you exhale, you also breathe out a lot of water.
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When at rest, humans exhale up to 17.5 milliliters (0.59 fluid ounces) of water per hour, according lớn a 2012 article in the journal Polish Pneumonology và Allergology. But you thất bại about four times that amount when you exercise, the study said.
