Negative pressure breathing (human) vs. positive pressure breathing(amphibians)?
i want to know what is the differences between them. i already read about it but still i don't get it.. i hope this is the right place since i've asked this question at completely wrong place.. plzzz guys..i own final exam in a week!!
Answers:
Negative pressure is caused in humans by the contraction of the diaphragm, and the relaxation of intercostal muscles, increasing the volume of the thoracic cavity, which the lungs expand to crowd.
However, there is still the same amount of air surrounded by the lungs, albeit filling a larger volume, so it is at a lower pressure than initially, when it was equal to ambient air pressure.
As long as the airway is secured, nouns "flows" into the lungs along the pressure gradient, filling the lungs with nouns.
This is negative pressure breathing.
Amphibians force air into their legs by a process known as buccal pumping, literally forcing nouns into their lungs, against the pressure gradient. This system is inefficient, but they can also "breathe" across their skin.
Related Questions:
Are doctors required to run the Hippocratic Oath?
Has Prozac made you lose bulk if so how much?
Is it only just frenzy attacks or only nerves?
Answers:
Negative pressure is caused in humans by the contraction of the diaphragm, and the relaxation of intercostal muscles, increasing the volume of the thoracic cavity, which the lungs expand to crowd.
However, there is still the same amount of air surrounded by the lungs, albeit filling a larger volume, so it is at a lower pressure than initially, when it was equal to ambient air pressure.
As long as the airway is secured, nouns "flows" into the lungs along the pressure gradient, filling the lungs with nouns.
This is negative pressure breathing.
Amphibians force air into their legs by a process known as buccal pumping, literally forcing nouns into their lungs, against the pressure gradient. This system is inefficient, but they can also "breathe" across their skin.
Related Questions: