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How high can you suck water up a straw if The pressure in the lungs can be reduced to about 5 kPa below atmospheric pressure?
The pressure 5kPA is about 0.725psi or 104.4lbs/sqft. (we're using feet for the cross section of the straw so that we can use it easily for the height)
We know that water has a density of 62.4lbs/ft^2.
Therefore, we divide the weight of the water that we can suck up the straw at 5kPa by the density of water. We get the volume of water that we can move. (104.4lbs) / (62.4lbs/ft^3) = 1.67ft^3 Since our column is a 1ft x 1ft column, water will be able to be lifted to 1.67ft.
What else can I help you with?
Why does atmospheric pressure not crush our lungs?
Atmospheric pressure does not crush our lungs because the pressure inside our bodies is equal to the pressure outside. This balance allows our lungs to expand and contract without being crushed.
What happens when pressure in the lung is greater than atmospheric pressure?
If the pressure in the lung is greater than atmospheric pressure, air will flow out of the lungs in order to equalize the pressure. This is called exhalation or breathing out.
What is the expected pressure of air in lungs of a diver at 4 meters below the sea level?
Air pressure (at sea level) is about 1 bar; every 10 meters below the water surface, pressure increases by about 1 bar - that gives a total of 1 + 0.4 = 1.4 bar. (1 bar is about 1 atmosphere.)
What type of pressure do humans breathe with?
Humans breathe with atmospheric pressure, which is the pressure exerted by the weight of the Earth's atmosphere. This pressure allows air to flow into our lungs during inhalation and out during exhalation.
How does the human body resist the atmospheric pressure?
The human body resists atmospheric pressure due to the balance of pressure inside and outside the body. Our body tissues, like skin and bones, provide structural support to prevent collapse. Additionally, air-filled spaces within the body, such as the lungs and sinuses, adjust to equalize pressure changes.
When intrapulmonary pressure drops below atmospheric pressure what is able to occur?
When intrapulmonary pressure drops below atmospheric pressure, air rushes into the lungs, causing inhalation or inspiration to occur. This process facilitates the exchange of gases in the alveoli of the lungs, allowing oxygen to enter the bloodstream and carbon dioxide to be removed.
Why does atmospheric pressure not crush our lungs?
Atmospheric pressure does not crush our lungs because the pressure inside our bodies is equal to the pressure outside. This balance allows our lungs to expand and contract without being crushed.
Why does the lung collapse if intrapleural pressure is not maintain?
Inspiration happens when the pressure inside the lungs is lower than the atmospheric pressure (outside) and air rushes into the lungs. Expiration is when the air inside the lungs is higher than the atmospheric pressure and the air rushes out of the lungs. If the intrapleural pressure (pressure within the pleura of the lungs) isn't maintained then the pressure in the lungs can't differentiate between inspiration and expiration and so the lung collapses.
When the lungs are at rest between breathing cycle the air pressure in the lungs is?
Air goes into or out of the lungs due to differential pressure. On inhalation, the pressure within the lungs is below atmospheric, so outside air rushes in. On exhalation, the pressure within the lungs is above atmopheric, so inside air rushes out. When you stop breathing for the moment at the end of exhalation, or when you transition from inhalation to exhalation at the end of inhalation, there is no air flow, because there is no differential pressure. Assuming that you do not close your larynx, then, when the lungs are at rest, the air pressure in the lungs is the same as atmospheric, and this occurs twice in each complete breathing cycle.
In healthy lungs what pressure is always lower than atmospheric pressure?
Gee, that's a good question. Hmm... i'd say the atmospheric pressure would be lower because when you travel to higher altitudes like, Mt Everest, the pressure in your lungs decrease causing them to deflate the lungs.......Its Intrapleural pressure
What happens if intrapleural pressure equal atmospheric pressure?
The intrapleual pressure is always below atmospheric pressure. Because of the connection between the two plurae which is similar to two wet pieces of paper adhered to each other, the negative intrapleural pressure helps to expand the lungs during ventilation. If intrapleural pressure was equal to atmospheric pressure, the lungs would collapse. Such a case is seen in a penetration of the thoracic cavity (pneumothorax), where a puncture in the thoracic cavity, and subsequently the plurae, will result in a collapsed lung.
When intraalveolar pressure exceeds atmospheric pressure what happens?
If intraalveolar pressure exceeds atmospheric pressure, air will flow out of the lungs due to the pressure gradient. This process is known as exhalation or expiration. It allows the lungs to get rid of carbon dioxide and regulate the levels of gases in the body.
When does inspiration occur?
when atmospheric pressure is greater than the pressure within the lungs, inspiration occur.
What happens when pressure in the lung is greater than atmospheric pressure?
If the pressure in the lung is greater than atmospheric pressure, air will flow out of the lungs in order to equalize the pressure. This is called exhalation or breathing out.
When intrapulmonary pressure is above atmospheric pressure what is able to occur?
When intrapulmonary pressure is above atmospheric pressure, air will move out of the lungs due to the pressure gradient, allowing for expiration. This is known as exhalation.
Why does air flow in when you expand your lungs?
Since the volume of the lungs increases, the intrathotacic pressure decreases, and air moves into the lungs.
Is it true or false the force that drives air into the lungs come from air pressure?
No atmospheric pressure
