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In lean healthy adult men, the total body water is about 60% (60–67%) of the total body weight; it is usually slightly lower in women (52–55%). [2] [3] The exact percentage of fluid relative to body weight is inversely proportional to the percentage of body fat. A lean 70 kg (150 lb) man, for example, has about 42 (42–47) liters of water ...
The figure for water fraction by weight in this sample was found to be 58 ±8% water for males and 48 ±6% for females. [3] The body water constitutes as much as 75% of the body weight of a newborn infant, whereas some obese people are as little as 45% water by weight. [4] This is due to how fat tissue does not retain water as well as lean tissue.
A typical adult has a blood volume of approximately 5 liters, with females and males having approximately the same blood percentage by weight (approx 7 to 8%) [ 1][ 2] Blood volume is regulated by the kidneys . Blood volume (BV) can be calculated given the hematocrit (HC; the fraction of blood that is red blood cells) and plasma volume (PV ...
The U.S. National Academies of Sciences, Engineering, and Medicine suggests an adequate daily fluid intake is about 15.5 cups (3.7 liters) of fluids a day for those assigned male at birth and ...
Seah (unit) The se'ah or seah ( Hebrew: סאה sə’āh ), plural se'im, is a unit of dry measure of ancient origin found in the Bible and in Halakha (Jewish law), which equals one third of an ephah, or bath. In layman's terms, it is equal to the capacity of 144 medium-sized eggs, or what is equal in volume to about 9 US quarts (8.5 litres). [ 1]
As there are many units of mass and volume covering many different magnitudes there are a large number of units for mass density in use. The SI unit of kilogram per cubic metre (kg/m 3) and the cgs unit of gram per cubic centimetre (g/cm 3) are probably the most commonly used units for density. One g/cm 3 is equal to 1000 kg/m 3. One cubic ...
At 101.325 kPa (abs) and 15 °C (59 °F), air has a density of approximately 1.225 kg/m 3 (0.0765 lb/cu ft ), which is about 1⁄800 that of water, according to the International Standard Atmosphere (ISA). [citation needed] Pure liquid water is 1,000 kg/m 3 (62 lb/cu ft).
e. Lung volumes and lung capacities refer to the volume of air in the lungs at different phases of the respiratory cycle . The average total lung capacity of an adult human male is about 6 litres of air. [ 1] Tidal breathing is normal, resting breathing; the tidal volume is the volume of air that is inhaled or exhaled in only a single such ...