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. |
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Use of high hydrostatic pressure to inactivate Hepatitis A virus For these reasons high hydrostatic pressure treatment of raw oyst,Use Its OK for men with high blood pressure to have a drink or two, new study finds Plasma separator-hydrostatic pressure type - Patent 3897343 The compressible means is responsive to increased hydrostatic pressure produced by centrifugal force acting on the blood. The piston has a specific gravity Relation between vasa recta blood flow and renal interstitial Relation between vasa recta blood flow and renal interstitial hydrostatic pressure during pressure natriuresis. E Farrugia, JC Lockhart and TS Larson 330exam3 A) blood hydrostatic pressure B) interstitial fluid osmotic pressure C) blood osmotic pressure D) interstitial fluid hydrostatic pressure Effect of Mild Hydrostatic Pressure on Red Blood Cells - Storming We studied the effect of physiological levels of hydrostatic pressure, such as that applied in diving or hyperbaric treatment, on (1) flow (rheological) hydrostatic pressure: Definition and Much More from Answers.com The pressure in the circulatory system exerted by the volume of blood when it is confined in a blood vessel. The hydrostatic pressure, coupled with the Continuous recording of hydrostatic pressure in renal tubules and Using a new ultra miniature pressure sensor hydrostatic pressure in. renal tubules and renal blood capillaries was continuously recorded. The transducer A hydrostatic pressure approach to cuffless blood pressure monitoring A hydrostatic pressure approach to cuffless blood pressure monitoring. P. Shaltis development of an optically-based, cuffless blood pressure Spontaneous changes in arterial blood pressure and renal Spontaneous changes in arterial blood pressure and renal interstitial hydrostatic pressure in conscious rats. S Skarlatos, P H Brand, P J Metting, RLO: Starling's Forces The pressure that blood exerts in the capillaries is known as blood pressure. The force of hydrostatic pressure means that as blood moves along the Hydrostatic Pressure Simulator Osmotic pressure is defined as the hydrostatic pressure required to stop the flow of to osmotic pressure (blood serum contains roughly 3% albumin). Blood Vessels This pressure is a hydrostatic pressure. Blood is no exception to this physical principle and therefore blood pressure is a hydrostatic pressure. Some basic principles of fluids and pressure related to blood vessels The term hydrostatic pressure refers to the force that a liquid exerts against the walls of its container. The pressure that blood exerts in the vascular Hydrostatic pressure Hydrostatic pressure is an important consideration for blood pressure. To simplify things, let's imagine that your heart is not causing any blood pressure. BioG 105/106 | Autotutorial Introductory Biology The pressure exerted by fluids, such as blood and tissue fluid, against the walls of the capillaries is called hydrostatic pressure. PeteSmif: Bowman's Capsule If blood Osmotic pressure is greater than blood hydrostatic pressure, Over the length of a 'typical' capillary, blood hydrostatic pressure falls so that Understanding edema | Nursing | Find Articles at BNET.com Blood hydrostatic pressure is the blood pressure, or push, at the capillary level. It's related to the pressure wave created each time the heart contracts. ISF-Plasma Exchange The primary forces that govern this exchange are hydrostatic pressure (the blood pressure within the capillaries), and osmosis. |
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