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 sensor
Amazon.com: Omron HEM-780 Automatic Blood Pressure Monitor with
Omron HEM-650 Wrist Blood Pressure Monitor with APS (Advanced Positioning Sensor) · Omron HEM-650 Wrist Blood Pressure Monitor with APS (Advanced

KTH Signals, Sensors and Systems :: (none)
Ultra-minaturized Pressure Sensors for Intravascular Blood Pressure Figure 1: The ultra-miniaturaized pressure sensor chip (0.1 mm x 0.14 mm x 1.3 mm)

TruWave Disposable Pressure Transducer
The pressure monitoring kit with the TruWave disposable pressure transducer is a sterile, single-use kit that monitors blood pressure when attached to

Technology Review: A Nano Pressure Sensor
Zinc oxide is biocompatible, so one could implant the nanowire pressure sensor in the arm to monitor blood pressure continuously, Wang says.

News
A sensor that measures blood pressure in patients with thoracic aorta aneurysms. Devices to help hypertension patients monitor their condition at home and

Blood Pressure Transducers - Deltran
Deltran® is a disposable pressure transducer that provides consistent and accurate readings during invasive blood pressure monitoring. Product Description

Portable Digital Blood Pressure Monitor
As mentioned earlier, all the measurements are mainly dependent on the waveforms from the circuit and the pressure sensor is very sensitive to even a slight

Blood Pressure - Intravascular
Arterial and venous blood pressures can be monitored using an intravascular catheter, pressure transducer, bridge amplifier and a PowerLab.

Recommendations for Blood Pressure Measurement in Humans and
Part 1: Blood Pressure Measurement in Humans: A Statement for Professionals From the Subcommittee of Professional and Public Education of the American Heart

Blood Pressure Sensor Manufacturers & Suppliers
Manufacturer Directory ★ China Blood Pressure Sensor Manufacturers ★ Reliable Blood Pressure Sensor suppliers from China, Taiwan, India & worldwide.

Blood Pressure Monitoring! Sensor-based, Non-Invasive Direct
No Cuff, No Catheter, No Kidding! Primo provides fast and accurate BP readings comfortably. With Fusion, get continual blood pressure readings virtually as

Modern devices to measure blood pressure
Ambulatory Blood Pressure Monitor This includes an upper arm cuff and an electronic monitor with a pressure sensor and an electrically driven pump that

MEM:Archive:MEMS:The Future of Medical Microelectromechanical Systems
In the medical industry, micron-sized pressure transducers for disposable blood pressure sensors sell by the millions. For example, about 1 million

Blood pressure - Wikipedia, the free encyclopedia
In practice, the pressure sensor is a calibrated electronic device with a numerical readout of blood pressure. To maintain accuracy, calibration must be

Blood Pressure Sensor Detail Information - Vernier Tech Info
Vernier Tech Info Library TIL #1426. Blood Pressure Sensor Detail Information. Blood Pressure Sensor, order code BPS-BTA, $99.00

Blood Pressure Sensor
The Blood Pressure Sensor is a non-invasive sensor designed to measure human blood pressure. It can be used to measure systolic and diastolic blood pressure


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