The respiratory system--
I was thinking about the lungs today...here goes--
i believe that the "aorta" supplies fresh blood to the lung tissue, keeping it soft, and from drying out, while being exposed to the drying-effects of the air inhaled during each respiration...working like a sponge, being constantly soaked with blood...at the same time, i feel that the "right ventricle" of the heart, is constantly sucking/evacuating the blood out of the lung tissue( that the "aorta" is supplying), into the heart, along with the many oxygen molecules from the air we breath, into the lungs...so, i suggest, that the negative pressure generated, from the "right ventricle" of the heart, is one of the main keys to this system...we all have sucked the juice out of an orange or two before( or most of us anyway), i feel this to be a good model of the phenomenon i am speculating on...if we view the orange we are sucking on( with the peel still on the wedge), with someone re-engorging the orange-wedge with fresh orange juice, as we are sucking on it, i theorize that the orange would remain juicy, to a value equal to the suction, and the pouring-in, of fresh juices( and there we have it, an equal model, of the blood-flow in the lungs, from the heart, and also the lungs hydration dynamics)...
as for the "alveoli", i feel that the tree-structure of the "bronchi", goes into the lungs, and at the ends of each branch in the structure, there is an alveolus...where the negative pressure, or "suction", is present, from the "right ventricle" of the heart, we can also note, that the branches of the "bronchi" taper into a smaller and smaller point...possibly forcing the molecules within the air, to "get into a line", of sorts, and then generate increased pressure, from the compression of the tapering "bronchial" passages, leading to the "alveoli"...in my opinion, this action, in combination with the vacuum within the lungs tissues, from the "right ventricle", likely forces only certain sized molecules through the "alveoli", into the lungs tissues...to be carried away into the "right ventricle"...the "alveoli", in my estimation, may be like a golf-ball( a round object, with little dimples, and these dimples are only the right size for an oxygen molecule to fit, under pressure, from the taper of the bronchial tubes, and also the pull of the vacuum within the lung tissue, from the suction of the "right ventricle" of the heart...and there we have it, once more...a working, circular system...it can be noted, that the lungs tissues already have oxygenated blood in them, from the "aorta" of the heart, meant to keep the lung tissue alive, and pliable, but this oxygenated blood must be replenished, from the lungs molecular separating action, that the "right ventricle" then draws from the lungs tissue, to the heart, to recirculate through the system, once again--
the "alveoli"--
the "alveoli" seem to be the same system used in a modern hydrogen separator, designed for modern cars, to allow them to run on hydrogen( i saw a tv special on it once..."discovery channel" is so cool)...anyway, i suggest that only the o2, and any other molecules, the same size as oxygen molecules, will fit through the structure of the lung's "alveoli", and the rest are expelled, on exhalation, by the force of the pressure in the lungs, equalizing, due to diaphragm expansion/contraction--
molecularly viewed, the "alveoli" are tiny molecular-sifters, and the molecular composition of air, is as follows...nitrogen-( n2)??%, oxygen-( o2)78.9%, argon-(ar)0.93%, co2( c0)0.038%, and others...neon/helium/krypton/hydrogen/xenon-( i am not aware of their periodic table symbols, at present??)...these are less than 2%, of the total airs make-up--
so, any molecule, the same size, or smaller, than an oxygen molecule, in the molecular composition of air...is absorbed, and the rest are expelled upon exhalation...representing the end of the cycle...this leads me to conclude, that the respiratory system works one way...things come in, from the negative pressure of the "diaphragm's" action, and are compressed, by the taper of the "bronchial passages", and are further pulled inward, by the draw of the "right ventricle", pulling blood from the lungs tissues...i believe that this push/pull, forces the molecules that will fit, past the "alveoli", and afterward, on exhalation, the remainder that would not pass through the "alveoli", are expelled...due to the lack of compression on exhalation, and the vacuum on the lung tissue side, of the "alveoli"( the heart-side)...this action, does not allow oxygen to "back-flow", into the "bronchial tubes"...making the "alveoli" a one-way molecular sifter--
i have forgone "spell-check" in the interest of science here( i only have an hour at each library to work on this)...i will post this to my blog, "digitaldoodlesandmind-farts.blogspot.com", very soon--
best wishes, john kruschke :o)
-( i feel that this B.S., is good B.S., of use to start a conversation with your doctor...and nothing more...)-
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