Adipose tissue - adipose tissue triglycerides are the main reserve fuel in the body. In lean adults body has up to 35 billion fat cells containing 0.4-0.6 ľg triglycerides in people with severe obesity, adipocytes in 4 times (125 billion), and each contains twice as much lipids ( 0.8-1.2 ľg triglycerides). High energy density and hydrophobic properties of triglycerides make them 5 times more fuel efficient per unit mass than glycogen. Triglycerides in the oxidation
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Function of adipose tissue
Function of adipose tissue:
- storage of energy as fat
- thermal insulation
- the creation of mechanical protection around the organs in the form of fat pads
-
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Distribution of adipose tissue
Main body fat a person has under the skin, and stomach area. The thickness of the layer of fat on my stomach in people with increased weight may reach 15-20 cm. Fat deposits are not homogeneous, they are presented in the form of slices of 5-10 mm.
In the abdominal fat is deposited not only under the skin. The
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The development of adipose tissue
Interestingly, the people of the few mammals that are born with fatty deposits. They begin to appear at 30 weeks of fetal development. It used to be that people are born with already prepared by fat cells, and their number in the adult population is not increasing. At the present time to find out that it is not. Indeed, mature fat cells themselves are n
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The accumulation of fat or obese in any person occurs when energy intake exceeds its costs over time. Very minor, but constant excess energy leads to a marked accumulation of fat in the body. Thus, the use of only 5% of "extra" calories can contribute to the accumulation of about 5 kg of fat per year. If within 30 years the consumption exceeds the cost of just 8 calories per day, it can lead to an increase in body weight of 10 kg. These figures reflect the average w
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31.01.2012
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Physiology of nutrition
Food consumed by man, it is necessary to design and functioning of his body. In addition, nutrition is of great importance from the viewpoint of preventive medicine. In the past, doctors had to deal mainly with the effects of malnutrition, their attention is now increasingly require the display of overeating. Too much food leads to obesity, which are often compan
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31.01.2012
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Physiology of digestion
Consider the physiology of digestion, or what happens to food in the gastrointestinal tract during digestion, as our body of pizza, soup or compote takes those substances which are necessary for his work.
Understanding the physiology of digestion
The main purpose
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