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  2. Endocardium - Wikipedia

    en.wikipedia.org/wiki/Endocardium

    Illustration depicting the layers of the heart wall including the innermost endocardium. The endocardium (pl.: endocardia) is the innermost layer of tissue that lines the chambers of the heart. Its cells are embryologically and biologically similar to the endothelial cells that line blood vessels. The endocardium also provides protection to the ...

  3. Orders of magnitude (mass) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(mass)

    Speculated approximate lower limit of the mass of a primordial black hole: 1.5 × 10 −8 kg: US RDA for vitamin D for adults [46] ~2 × 10 −8 kg Uncertainty in the mass of the International Prototype of the Kilogram (IPK) (±~20 μg) [47] 2.2 × 10 −8 kg Planck mass, [48] can be expressed as the mass of a 2 Planck Length radius black hole ...

  4. Human - Wikipedia

    en.wikipedia.org/wiki/Human

    The average mass of an adult human is 59 kg (130 lb) for females and 77 kg (170 lb) for males. [161] [162] Like many other conditions, body weight and body type are influenced by both genetic susceptibility and environment and varies greatly among individuals. [163] [164] Humans have a far faster and more accurate throw than other animals. [165]

  5. Natural units - Wikipedia

    en.wikipedia.org/wiki/Natural_units

    In physics, natural unit systems are measurement systems for which selected physical constants have been set to 1 through nondimensionalization of physical units.For example, the speed of light c may be set to 1, and it may then be omitted, equating mass and energy directly E = m rather than using c as a conversion factor in the typical mass–energy equivalence equation E = mc 2.

  6. Aortic valve area calculation - Wikipedia

    en.wikipedia.org/wiki/Aortic_valve_area_calculation

    In cardiology, aortic valve area calculation is an indirect method of determining the area of the aortic valve of the heart. The calculated aortic valve orifice area is currently one of the measures for evaluating the severity of aortic stenosis. A valve area of less than 1.0 cm 2 is considered to be severe aortic stenosis. [1] [2]

  7. Cardiovascular disease - Wikipedia

    en.wikipedia.org/wiki/Cardiovascular_disease

    Cardiovascular disease (CVD) is any disease involving the heart or blood vessels. [3] CVDs constitute a class of diseases that includes: coronary artery diseases (e.g. angina, heart attack), heart failure, hypertensive heart disease, rheumatic heart disease, cardiomyopathy, arrhythmia, congenital heart disease, valvular heart disease, carditis, aortic aneurysms, peripheral artery disease ...

  8. Ancient Greek units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Greek_units_of...

    211.9 mm (8.34 in) straight hand's width spithamē σπιθαμή: 12 daktyloi 231.2 mm (9.10 in) span of all fingers pous πούς: 16 daktyloi 308.2 mm (12.13 in) foot: pygmē πυγμή: 18 daktyloi 346.8 mm (13.65 in) forearm pygōn πυγών: 20 daktyloi 385.3 mm (15.17 in) distance from elbow to fist pēchys πῆχυς: 24 daktyloi

  9. Technetium-99m - Wikipedia

    en.wikipedia.org/wiki/Technetium-99m

    Technetium-99m (99m Tc) is a metastable nuclear isomer of technetium-99 (itself an isotope of technetium), symbolized as 99m Tc, that is used in tens of millions of medical diagnostic procedures annually, making it the most commonly used medical radioisotope in the world.

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