What does the human body do when it breathes dust?
929757
There are hairs in the nose that filter out such particles. When breathed in through the mouth, there are other things as well in the windpipe, etc that prevent many contaminants from reaching the lungs.
936562
Your first task is to find out why you do this.  Your doctor is your best ally here.  Once you find out why, then you and your doc can start to work on a solution.\n\nYou owe it to yourself to see a doctor on this one.  There are many possibilities, ranging from the benign (dust or an allergy of some kind), to the serious (sinus problems, throat or lung cancer, etc.).
550377
1) Sand grains are too heavy compared to bits of dust. Gravity overcomes cohesion and adhesion in their case. Dust, on the other hand, is light enough to get blown around by the breeze your legs create when you walk through the room. As the bits are blown around, they collide with each other and get hung up on each other. As sand gets blown around, it just falls down again.\n\n2) Also, unlike the building blocks of dust bunnies, sand is not dead cells shed from humans and other animals. Most of the dust your body produces probably has enough skin oils to create a little bit of stickiness.
805901
While you are sleeping the natural tears in your eyes build up and clean your eyes to get rid of dust, dirt, and impurities. The excess collects in the corners of your eyes and drys up. That is what makes the crusty stuff, or "sleep" you find around your eyes in the morning.
181593
i don't think i quite know what ur asking, but as the air enters ur body, it is humidified, and warmed and passes thru ur pharynx, trachea and bronchi before it reaches ur lungs...  i hope that answers ur question
839672
On Earth dust occurs in the atmosphere from various sources: soil dust lifted up by wind, volcanic eruptions, and pollution are some examples.
401998
You can use a spirometer to do it. Please check out this link I am giving you, it will solve your problem. They have really done it well\nhttp://intranet1.sutcol.ac.uk:888/NEC/MATERIAL/PDFS/HUM_BIO/AS_HUMAN/23U2_T2.PDF\n(We can measure the volume of air moved by the lungs using a. spirometer . The ... air min. −1. with a breathing. rate of 18 breaths min ...)- excerpt from the site.
1098498
AIR !\nAir is most vital for all human beings and animals for breathing, and is also necessary for plants to photo-synthesise their nutrients. \n...Air remains invisible all the time, while permeating everywhere plus penetrating into the remotest of crevices.\n...Air can also be cool/warm as need be, and gently caress as a breeze, or furiously destroy as a tornado.\nAir is what I'd choose to be !
608209
Respiration removes carbon dioxide which, when in the body, forms carbonic acid in the blood. Too much carbonic acid and you will suffer from acidosis. In addition to keeping the blood at the correct pH, respiration supplies oxygen to the blood and tissues, such as muscle so that they too, can function correctly.\nSo, homeostasis is when all systems and fluids and tissues are "balanced", or in their correct working state. By removing carbon dioxide, respiration helps to keep the blood (and the body) in homeostasis.
643276
Yup, it does.  If the air contains dust particles( also soot from car exhausts), rain drops will form a colloidal solution with the dust and carry it down to the ground, or in this case, your eyeglasses.  And when the rainwater evaporates, what are left are the dust particles.
17857
Dessicated mucous with suspended particles of dust and other airborne impurities that your nose has filtered out of the air you breathe.
510901
Dr. Barry Make, a pulmonologist at National Jewish Medical and Research Center in Denver, says the answer is not because we are tired or bored — although that’s the common perception. Read on for his explanation.\n\nThe most plausible explanation, and the one that is taught in medical school, is that we yawn because oxygen levels in our lungs are low.\n\nTHE TRUTH IS that we don’t completely understand why people, or animals for that matter, yawn. It’s widely assumed that yawning occurs because we are tired or bored or because we see someone else doing it, but there isn’t any hard evidence to support these beliefs.\n\nThe most plausible explanation, and the one that is taught in medical school, is that we yawn because oxygen levels in our lungs are low. Studies have shown that during normal, at-rest breathing, we don’t use anywhere near our lung capacity; for the most part, we just use the air sacs at the bottom of the lungs. If the air sacs, called alveoli, don’t get fresh air, they partially collapse and the lungs stiffen a bit. As a result, it’s believed, our brain prompts the body to either sigh or take a yawn to get more air into the lungs.\n\nBut certain aspects of yawning remain even more mysterious. Fetuses, for instances, have been observed yawning in the womb, yet it’s known that they don’t take oxygen in through their lungs. And yawning seems to be a symptom of multiple sclerosis and other medical conditions, for reasons unclear.\n\nAnother puzzling phenomenon is that some male animals, men included, yawn in association with penile erection (although it’s presumptuous to assume they’re bored with their sex lives).\n\nNext time you're in a meeting, try this little experiment: Take a big yawn, cover your mouth out of courtesy, and watch and see how many people yawn. There's a good chance that you'll set off a chain reaction of yawns. Before you finish reading this question of the day, it's likely that you will yawn at least once. Don't misunderstand, we aren't intending to bore you, but just reading about yawning will make you yawn, just as seeing or hearing someone else yawn makes us yawn. \n\nInteresting Yawning Facts\n•The average yawn lasts about six seconds. \n•Your heart rate can rise as much as 30 percent during a yawn. \n•55 percent of people will yawn within five minutes of seeing someone else yawn. \n•Blind people yawn more after hearing an audio tape of people yawning. \n•Reading about yawning will make you yawn. \n•Olympic athletes often yawn before competition. \n\nWhat's behind this mysterious epidemic of yawning? First, let's look at what a yawn is. Yawning is an involuntary action that causes us to open our mouths wide and breathe in deeply. We know it's involuntary because we do it even before we are born. Research shows that 11-week-old fetuses yawn. \n\nThere are many parts of the body that are in action when you yawn. First, your mouth opens and jaw drops, allowing as much air to be taken in as possible. When you inhale, the air taken in is filling your lungs. Your abdominal muscles flex and your diaphragm is pushed down. The air you breath in expands the lungs to capacity and then some of the air is blown back out. \n\nWhile the dictionary tells us that yawning is caused by being fatigued, drowsy or bored, scientists are discovering that there is more to yawning than what most people think. Not much is known about why we yawn or if it serves any useful function and very little research has been done on the subject. However, there are several theories about why we yawn. \n\nHere are the three most common theories: \n•The Physiological Theory -- Our bodies induce yawning to drawn in more oxygen or remove a build-up of carbon dioxide. This theory helps explain why we yawn in groups. Larger groups produce more carbon dioxide, which means our bodies would act to draw in more oxygen and get rid of the excess carbon dioxide. Howeve
1073783
Eyelashes keep dust and other particles out of your eyes.
94856
If the air is dry or cold, then when you inhale, the moisture gets taken from your lungs into the air (since hot air can hold more moisture - when the air heats in your lungs it needs moisture and takes it).  When you breathe a lot more, like when you exercise, the lungs dry out more than normal.  This drying of the lungs is normally felt as a painful burn, and it's why when people run in cold weather they normally try to breathe through their noses.  The passage through the sinuses is longer, and gives the air more time to heat up and absorb moisture on the way down to the lungs instead of in the lungs themselves.  Try to pay attention and always breathe in through your nose while exercising.  See if this helps.  If it does, and you work out at home, then you could try to get a humidifier.
1065525
The respiratory system starts with the nose and mouth where we breathe in oxygen and expel carbon dioxide. The oxygen travels down the windpipe(trachea) and into the bronchi contained in each lung. The windpipe splits into two bronchi which go into each lung. Each bronchi spreads into smaller structures called bronchioles. These spread through each of the lungs. Each bronchiole has a number of smaller structures known as alveoli. The alveoli have a very large surface area and is where gas exchange occurs. Oxygen replaces carbon dioxide and is taken to all parts of the body via the bloodstream. Carbon dioxide is toxic to humans in high concentrations which is why it is breathed out. \nThe main structures are nose, mouth, windpipe, lungs, bronchi, bronchioles, alveoli.
227115
air is moved into the lungs
127528
The moisture is a conduit to an electrical charge....The machine the Visa card was used on had the electicity...the normal moisture in an exhaled breath produced the small amount of fluid to be a conduit providing a connection .....NORMAL!  Getting rid of the dust as stated above is also...very true and very normal.  Not bizzare at all.