What is Cholesterol?

Cholesterol is a sterol (a combination steroid and alcohol). Cholesterol is a lipid found in the cell membranes of all tissues, and it is transported in the blood plasma of all animals. Because cholesterol is synthesized by all eukaryotes, trace amounts of cholesterol are also found in membranes of plants and fungi.The name originates from the Greek chole- (bile) and stereos (solid), and the chemical suffix -ol for an alcohol, as researchers first identified cholesterol in solid form in gallstones by Francois Poulletier de la Salle in 1769. However, it is only in 1815 that chemist Eugene Chevreul named the compound "cholesterine".[2]Most of the cholesterol is synthesized by the body and some has dietary origin. Cholesterol is more abundant in tissues which either synthesize more or have more abundant densely-packed membranes, for example, the liver, spinal cord and brain. It plays a central role in many biochemical processes, such as the composition of cell membranes and the synthesis of steroid hormones. Cholesterol is insoluble in blood, but is transported in the circulatory system bound to one of the varieties of lipoprotein, spherical particles which have an exterior composed mainly of water-soluble proteins. The main types, low-density lipoprotein (LDL) and high-density lipoprotein (HDL) carry cholesterol from and to the liver.According to the lipid hypothesis, abnormally high cholesterol levels (hypercholesterolemia) and abnormal proportions of LDL and HDL are associated with cardiovascular disease by promoting atheroma development in arteries (atherosclerosis). This disease process leads to myocardial infarction (heart attack), stroke and peripheral vascular disease. As high LDL contributes to this process, it is termed "bad cholesterol", while high levels of HDL ("good cholesterol") offer a degree of protection. The balance can be redressed with exercise, a healthy diet, and sometimes medication.

blood pressure gages
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Made with a dense rubber that helps protect aneroid gauges (blood pressure gauges) from damage due to dropping or heavy abuse situations.

Digital pressure gauge - US Patent 7117746
Portable blood pressure measuring device and method of measuring blood pressure Issued on: January 23, 1996 Inventor: Jackson, et al.

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Description: Stock illustration of a heart, arm and blood pressure gauge. This black and white medical clipart image shows a heart beside blood pressure

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pressure gage - definition of pressure gage by the Free Online
Meaning of pressure gage. What does pressure gage mean? pressure gage synonyms, sphygmomanometer - a pressure gauge for measuring blood pressure

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Blood Pressure Gauges
Blood Pressure Gauges (15) · CPR Masks (4) · Rehab Equipment (18) · Scissors, Penlights, Pocket Instruments (28) · Stethoscopes & Accessories (45)

Pressure Gauge On GlobalSpec
Pressure gauges are used for a variety of industrial and A blood pressure gauge is simply a way to measure the performance of the pump and the pipes.

Electronic blood pressure gauge equipped with dismountable
An electronic blood pressure gauge equipped with dismountable external memory device includes a blood pressure gauge and a memory device with a reading

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Latest News and Information On High Blood Pressure. Symptoms, risks, treatments and other information on High Blood Pressure.

Taking a blood pressure
The first time you hear this sound, note what the reading was on the pressure gage. This value represents the systolic blood pressure (described below).

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Howstuffworks "How does a blood pressure gauge (sphygmomanometer
When I go to the doctor's office and they put that cuff thing around my arm to check my blood pressure, what are they doing? What are they listening for

Taking Someoneâ™s Blood Pressure
1) recording of systolic blood pressure on gage (when rushing sound first heard). 2) sounds intensify à recording of diastolic blood pressure (when sound

Checking Up on Blood Pressure Monitors
At the same time, medical experts fear that the mercury gauges may be The FDA, which regulates blood pressure devices, requires companies to show that

Measuring Blood Pressure - Measuring Hypertension
Manual versions of the blood pressure gauge have three components: an arm cuff, a pressure gauge and a stethoscope. Electronic blood pressure gauges do not


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