Atherosclerosis, or hardening of the arteries, is a condition in which plaque builds up inside the arteries. Plaque is made of cholesterol, fatty substances, cellular waste products, calcium and fibrin (a clotting material in the blood).Atherosclerosis is a type of arteriosclerosis.any scientists believe plaque begins to form because the inner lining of the artery, called the endothelium, becomes damaged. Three possible causes of damage to the arterial wall are: 1  Elevated levels of cholesterol and triglycerides in the blood. 2  High blood pressure.
The metric unit is degrees Celsius and the SI fundamental unit is the Kelvin. The degree Celsius, which is 1/100 of the difference between the freezing point and boiling point of pure water at sea level.Each Â°C equals 1.8 Â°F (Fahrenheit). The metric unit for temperature is the degree Kelvin.elsius or Kelvin The metric unit for temperature is the Kelvin (symbol: K), which is defined as 1/273.16 of the temperature difference between absolute zero and the triple p â¦ oint of water.
The freezing point of water is equal to 32 Fahrenheit and 0 Celsius and the boiling point is equal to 212 Fahrenheit and 100 Celsius. Another temperature scale is The Kelvin scale which has many applications in science and engineering.The start of the Kelvin scale (0 K) is the point of zero heat (no heat energy) which is equal to -273 Celsius.  Kelvin  Fahrenheit  Celsius     In degrees Kelvin, Celsius, or Fahrenheit.he degree Celsius (symbol: Â°C, formerly known as degrees centigrade) is of the same magnitude, but the zero is at 273.15 K. It is more commonly used than Kelvin for everyday usage, for example in weather forecasts and room temperature.