How does bernoulli's principle relate to the lungs.?
340646
hmm... well as you inhale, the pressure in your lungs decreases.  And according to the bernoulli principle, it decreases proportionally to the rate of inhalation.
356365
Ventilation - the physical act of moving air in and out of the lungs.\n\na)  Passage way resistent would reduce the volume of air that could be inspired - either by hyperinflating the lungs thereby not allowing new air to fill the lungs with breathing OR by the simple resistence itself, no allowing air in (but its usually the former).\n\nb) Decrease lung compliance would reduce the inspiratory volume and therefore decrease ventilation.\n\nc)  If the lungs did not secrete surfactant, the surface tension of alveoli would be much higher and it would not be able to inflate normally.  Therefore ventilation would be reduced again.\n\nSo after I help you with your homework, are you going to buy me lunch?
407963
See\nhttp://users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Pulmonary.html
534799
Yes.  \n\nBoyle's Law states that the volume of a fixed amount of gas at constant temperature is inversely proportional to the pressure exerted on the gas.  In other words, as pressure rises volume decreases and as pressure decreases volume increases.
779897
IT is because of something called "The Bernoulli Principle". \nThis principle states that the more you increase the velocity of a liquid or a gas, the more you decrese the pressure exerted by it. The faster and faster you go in the train, the more the air pressure that it exerts upon you is decreased. This is the same principle that explains why an airplane's wing works.
406302
a) When you inhale, air goes through your nostrils and into you air ways all the way to your lungs.\nb) Inside your lungs are small alveoli that capture O2 molecules and trap them for your red cells to start working.\nc) Each red cell is like a carrier that excahnges O2 molecules for CO2 moluecules (those of used air on your bloodstream)\nd) Red cells go through your blood to every tiny place in your body giving oxygen where is needed and taking CO2 back to the lungs.  Your lungs get rid off those CO2 molecules when you exhale.\ne) You heart pumps blood in two directions:  It makes the blood with carbon dioxide (CO2) go to the lungs and the blood that is oxygen rich, go to all your body.  Your brain is the primary oxygen client in your body.
702914
Actually there's no good relationship because Boyle's Law assumes constant temperature.  Unless the air is 98.7 degrees Farenheit, breathing is going to involve the air changing temperature as well as expanding / experiencing pressure change.\n\nHowever, at 98.7 degrees farenheit, one could surmise that temperature is (mostly) constant, so then Boyle's law is clearly shown:  pressure inside a full lung is quite high, but when that air is exhaled it expands into a much larger space around the breathing person and the pressure (should) drop.  Assuming you aren't 10,000 leagues under the sea.
125057
Same reason it makes it go up. Bernoulli's law.
33029
Some of the basis laws that govern the behavior of gases follow:\n\nBoyle's Law= Volume is proportional to the inverse of pressure\n\nCharles' Law= Volume is proportional to temperature\n\nAvaogadro's Law= Volume is proportional to number of moles present\n\nThese together lead to the ideal gas equation:\n\nPV = nRT\n\nwhere P is pressure\n      V is volume\n      n is the number of moles present\n      R is the gas constant\n      T is the temperature\n\nThe value of R is 0.082057 L*atm/(mol*K).\nTemperature must be in kelvins for this relationship.  Temperature in kelvins = tempature in Celcius +273.15.
60322
Archimedes principle on bouyancy states that a body submerged in a fluis is subjected by an unbalance force called bouyant force equal to the weight of the displaced fluid. By formula, Fb = Vd\n;Fb = bouyant force\nV = volume of te dispaced fluid\nd = density of the fluid\n\nDimensional Analysis,\nFb must had a unit of force; Kg, N, lb\nV is volume; cu.m, cu.ft\nd is density; kg/cu.m. and so on.\n\nFb(Kg) = V(cu.m.)*d(Kg/cu.m.)\n\nu'll get Kg.
543040
The same as in any other member of life that has one. To make the lungs work.
472939
Air travels to the lungs through a series of air tubes and passages. It enters the body through the nostrils or the mouth, passing down the throat to the larynx, or voice box, and then to the trachea, or windpipe. In the chest cavity the trachea divides into two branches, called the right and left bronchi or bronchial tubes, that enter the lungs.\n\nIn the adult human, each lung is 25 to 30 cm (10 to 12 in) long and roughly conical. The left lung is divided into two sections, or lobes: the superior and the inferior. The right lung is somewhat larger than the left lung and is divided into three lobes: the superior, middle, and inferior. The two lungs are separated by a structure called the mediastinum, which contains the heart, trachea, esophagus, and blood vessels. Both right and left lungs are covered by an external membrane called the pleura. The outer layer of the pleura forms the lining of the chest cavity.\n\nThe branches of the bronchi eventually narrow down to tubes of less than 1.02 mm (less than 0.04 in) in diameter. These tubes, called bronchioles, divide into even narrower tubes, called alveolar ducts. Each alveolar duct ends in a grapelike cluster of thin-walled sacs, called alveoli (a single sac is called an alveolus). From 300 million to 400 million alveoli are contained in each lung. The air sacs of both lungs have a total surface area of about 93 sq m (about 1000 sq ft), nearly 50 times the total surface area of the skin.\n\nIn addition to the network of air tubes, the lungs also contain a vast network of blood vessels. Each alveolus is surrounded by many tiny capillaries, which receive blood from arteries and empty into veins. The arteries join to form the pulmonary arteries, and the veins join to form the pulmonary veins. These large blood vessels connect the lungs with the heart.\n\n© 1993-2003 Microsoft Corporation. All rights reserved.
86530
Graham's law states that the effusion of a gas is inversely proportional to its molar mass. Smaller molecules are able to move through the air faster and make it to your nose in large enough numbers for your nose to detect them. Your nose is not particularly strong, too.
1168038
First the diaphragm under the lung expands creating an area of low pressure in the lungs leading to the air from outside the body to rush into the mouth to the trachea to the bronchi to bronchi oles and then to alveoli. The lung is like a sponge and has an increasingly small system of tubes that are lined with microscopic alveoli that are lined with capillaries. When O2 molecules reach the alveoli they diffuse oppositely to carbon dioxide which is the body's waste gas. The blood cells go from the capillaries in the alveoli to venules to the pulmonary vein where it enters the left atrium and then goes to the left ventricle where it is rushed out of the heart through the aorta where it divides into other arteries, arterioles, and then capillaries.
79915
What is Pleurisy?\n\nPleurisy is an inflammation of the pleura. There are two pleurae, one around each lung. The pleura is a two-ply membrane that both encloses the lung and lines the chest cavity. \n\nThis two-layer protective wrapping fits closely around the lung, with, normally, no actual space between the inner and outer layers. The layers are joined at the edges, so that the pleura might be compared to a closed balloon, completely empty of air and wrapped tightly around the outside of each of the lungs. \n\nOnly a thin Iubricating layer of fluid is between the inner pleural lining and the outer one. Ordinarily, the smooth linings and lubricating fluid serve to allow the lung free movement within the chest for normal breathing. The almost non-existent space occupied by the lubricant can develop into what is called a pleural cavity if its fluid contents increase.
212161
"across these surfaces"  you obviously copied this from your homework or something because "these surfaces" must require some sort of figure to tell you what is happening.  Why don't you ask us a question that includes what surface and we will be able to help you.\n\nAre you talking about aveoli in the lungs?
716699
Um, I think one would be the CO2 build up causes the lungs to breathe, in a nutshell.