five. (Audio, other) audio a device on some brass devices by which the helpful duration of the tube may very well be different to empower a chromatic scale being made
valve of vein (venous v's) any from the little cusps or folds found in the tunica intima of numerous veins, serving to prevent backflow of blood.
References in periodicals archive ? When you are changing a sweat valve which has a compression valve, sand off all traces of solder just before adding The brand new escutcheon, nut and sleeve.
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pulmonary valve (pulmonic valve) the pocketlike cardiac valve that safeguards the orifice in between the right ventricle as well as pulmonary artery.
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[ambiguous] Packing is often utilised amongst the stem along with the bonnet to keep up a seal. Some valves have no exterior control and don't require a stem as in the majority of Examine valves.
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A security valve that releases gas into your environment from the ventilator circuit once the strain during the circuit exceeds a acknowledged, Protected amount.
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In aortic valve regurgitation, the valve in between the lower left coronary heart chamber (still left ventricle) and the most crucial artery that causes the body (aorta) doesn't www.kp-lok.com shut properly, which brings about some blood to leak backward into the left ventricle. This forces the left ventricle to hold far more blood, possibly causing it to enlarge and thicken.
In the guts there are two valves that prevent backflow of blood in the ventricles in to the atria. On the proper facet of the center would be the tricuspid valve, made up of three flaps of tissue; over the still left is The 2-piece mitral valve. When blood has remaining the heart and entered the aorta, its return is prevented through the semilunar valves, which encompass membranous saclike flaps that open faraway from the guts. Should the movement of blood reverses, the flaps fill and are pressed in opposition to one another, Hence blocking the reentry of blood into the aorta.
 [valv] a membranous fold in a canal or passage that stops backward move of material passing as a result of it.
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