an update to my heart post--
"human-heart operational fluid dynamics"...
in this case( the human heart's operation), the standard "fluid dynamics" found in cars( one of my favorite places this concept is present), can not be deployed as a good model...i believe, that some variation from the automotive example must be made, to see the values "in-play", properly, when the heart pumps blood, as well as the needed pressures to do so...i contend, that the heart has two "pressure-chambers", and that it operates in two stages( as a two-stage pump), so, here goes...
if we envision the veins in the body, and their difference from automotive brake lines, i feel we can see the issue displayed quite well...a car's brake lines, support themselves, and the veins within the body do not...and here is the variation from the automotive model, if we envision a garden hose, connected to the water-outlet valve, that is laid out in a straight line, from the valve, with an open end, if the hose is very soft, the hose will not raise up, and expand, until the water spigot is turned on, to generate enough internal pressure, within the hose...and i feel this to be the difference between the human bodies veins, and the fluid dynamics "in-play" for cars...i also suggest, that the longer this soft hose is, the more pressure that will be needed, to be delivered from the water-spout( the heart), to keep the inside of the hose expanded, if the end is open, or slightly open...so, i believe that we can then generate some rough numbers, with some new math, to get serious values, to demonstrate the concept...i suggest, that the weight of the vein, times the length of the vein, plus the weight of the "adjusted" fluid density/weight within, plus any weight bearing on the vein, from the outside of the vein( or flexible hose)...will determine the needed psi, to keep the tube open...
meaning,( .1 grams of vein weight x 1000 mm vein length + adjusted fluid weight( 2 mm radius x 2 x 360 x 1.060 specific gravity of blood) + 100 grams of tissue above, or any pressure applied above the vein, to the skin = pressure in "grams", to keep the vein from collapsing...this "grams" value, must then be calc'd to convert to "pounds", or "psi"( grams value x 0.0220462) = psi value( 4.246979968)...the numbers pile up rapidly...so, i feel this displays the reason the body's heart has two pressure outlets, the "aorta" to the head, and the "left ventricle" to the farthest extremities)...the veins must be kept expanded, and too much pressure would be going to the brain if there was only one high pressure, hence, the reason that i feel the "aorta" supplies the brain with blood, and the "left ventricle" draws blood to be pumped to the farthest extremities, from the "aorta", to generate a higher pressure...seen in numeric form, the "right ventricle" would be the low pressure return( -3.00 to -3.497psi), from the extremities, that mixes the return blood with o2, from the lungs only, that then contracts, and sends +3.497psi of blood, to the "aorta", that then acts as a pressure outlet, and staging area...for the "left ventricle", the "left ventricle" then draws blood from the "aorta", at it's +3.497psi value, and as the "left ventricle" is a smaller chamber, drawing a higher pressure into it's volume, when it compresses, it generates a higher "psi", at it's outlet(+4.246psi)...this displays the concept that i feel is "in-play" in the heart, for the inspection of any medical persons, where-ever they may be, world-wide, i hope that i am correct, and that this concept yields some improvements, in modern medicine--
--( also...i feel that this B.S., is quite good B.S., of use for starting a conversation with your doctor...and nothing more...)--
best wishes, john kruschke-- :o)
--( p.s. : don't mind the penguins, i will get a photo of the bodies veins later...this post is not penguin related...they are having a chat here, but it's "mostly gossip"...)--
--housekeeping...i need to adjust the calc in this post to match the completed one above--
"human-heart operational fluid dynamics"...
in this case( the human heart's operation), the standard "fluid dynamics" found in cars( one of my favorite places this concept is present), can not be deployed as a good model...i believe, that some variation from the automotive example must be made, to see the values "in-play", properly, when the heart pumps blood, as well as the needed pressures to do so...i contend, that the heart has two "pressure-chambers", and that it operates in two stages( as a two-stage pump), so, here goes...
if we envision the veins in the body, and their difference from automotive brake lines, i feel we can see the issue displayed quite well...a car's brake lines, support themselves, and the veins within the body do not...and here is the variation from the automotive model, if we envision a garden hose, connected to the water-outlet valve, that is laid out in a straight line, from the valve, with an open end, if the hose is very soft, the hose will not raise up, and expand, until the water spigot is turned on, to generate enough internal pressure, within the hose...and i feel this to be the difference between the human bodies veins, and the fluid dynamics "in-play" for cars...i also suggest, that the longer this soft hose is, the more pressure that will be needed, to be delivered from the water-spout( the heart), to keep the inside of the hose expanded, if the end is open, or slightly open...so, i believe that we can then generate some rough numbers, with some new math, to get serious values, to demonstrate the concept...i suggest, that the weight of the vein, times the length of the vein, plus the weight of the "adjusted" fluid density/weight within, plus any weight bearing on the vein, from the outside of the vein( or flexible hose)...will determine the needed psi, to keep the tube open...
meaning,( .1 grams of vein weight x 1000 mm vein length + adjusted fluid weight( 2 mm radius x 2 x 360 x 1.060 specific gravity of blood) + 100 grams of tissue above, or any pressure applied above the vein, to the skin = pressure in "grams", to keep the vein from collapsing...this "grams" value, must then be calc'd to convert to "pounds", or "psi"( grams value x 0.0220462) = psi value( 4.246979968)...the numbers pile up rapidly...so, i feel this displays the reason the body's heart has two pressure outlets, the "aorta" to the head, and the "left ventricle" to the farthest extremities)...the veins must be kept expanded, and too much pressure would be going to the brain if there was only one high pressure, hence, the reason that i feel the "aorta" supplies the brain with blood, and the "left ventricle" draws blood to be pumped to the farthest extremities, from the "aorta", to generate a higher pressure...seen in numeric form, the "right ventricle" would be the low pressure return( -3.00 to -3.497psi), from the extremities, that mixes the return blood with o2, from the lungs only, that then contracts, and sends +3.497psi of blood, to the "aorta", that then acts as a pressure outlet, and staging area...for the "left ventricle", the "left ventricle" then draws blood from the "aorta", at it's +3.497psi value, and as the "left ventricle" is a smaller chamber, drawing a higher pressure into it's volume, when it compresses, it generates a higher "psi", at it's outlet(+4.246psi)...this displays the concept that i feel is "in-play" in the heart, for the inspection of any medical persons, where-ever they may be, world-wide, i hope that i am correct, and that this concept yields some improvements, in modern medicine--
--( also...i feel that this B.S., is quite good B.S., of use for starting a conversation with your doctor...and nothing more...)--
best wishes, john kruschke-- :o)
--( p.s. : don't mind the penguins, i will get a photo of the bodies veins later...this post is not penguin related...they are having a chat here, but it's "mostly gossip"...)--
--housekeeping...i need to adjust the calc in this post to match the completed one above--
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