what is dialysis in biology
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- Dialysis. Separation of substances in solution by means of their unequal diffusion through semipermeable membranes.The process of separating larger molecules from smaller molecules that occurs in kidney dialysis for example, where a machine takes a role of a kidney and filtrates blood.eparation of substances in solution by means of their unequal diffusion through semipermeable membranes.The process of separating larger molecules from smaller molecules that occurs in kidney dialysis for example, where a machine takes a role of a kidney and filtrates blood.
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Definitions &Translations Kidneys are essential to the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid–base balance, and regulation of blood pressure (via maintaining the salt and water balance).ach kidney excretes urine into a ureter which empties into the bladder. Renal physiology is the study of kidney function, while nephrology is the medical specialty concerned with kidney diseases.
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- Hemolysis is the breakage of, or damage to, the membrane of red blood cells that results in leakage of hemoglobin into the surrounding fluid.Hemolysis is a common, yet preventable problem.emolysis is the breakage of, or damage to, the membrane of red blood cells that results in leakage of hemoglobin into the surrounding fluid.
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A The kidneys are bean-shaped organs that serve several essential regulatory roles in vertebrates. They remove excess organic molecules from the blood, and it is by this action that their best-known function is performed: the removal of waste products of metabolism.idneys are essential to the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid–base balance, and regulation of blood pressure (via maintaining the salt and water balance).
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hemodialysis Hemodialysis, also called dialysis, is the most common treatment for kidney failure. A dialysis machine is an artificial kidney which cleanses the blood. During dialysis, blood is drawn from the patient into the dialysis machine, circulated through the machine, and then returned to the patient.
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Dialysis During hemodialysis, blood passes from the patient's body through a filter in the dialysis machine, called a dialysis membrane.. For this procedure, the patient has a specialized plastic tube placed between an artery and a vein in the arm or leg (called a gortex graft).
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- Diffusion across a differentially permeable membrane: Dialysis Dialysis is the diffusion of solute molecules across a differentially permeable membrane. The cell membrane is differentially permeable. Thus, through dialysis, certain substances may enter a cell, and certain metabolic products, including wastes, may leave.
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hemodialysis What is Vascular Access. Hemodialysis, also called dialysis, is the most common treatment for kidney failure. A dialysis machine is an artificial kidney which cleanses the blood. During dialysis, blood is drawn from the patient into the dialysis machine, circulated through the machine, and then returned to the patient.
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What is Dialysis? Now there are two: kidney transplant and dialysis. Dialysis is a treatment that can clean the blood. A filter is used to remove wastes. A membrane (thin layer of tissue) keeps blood separate from a special fluid called dialysate. The membrane has tiny pores in it that let wastes and water out.
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Renal Replacement Therapy (RRT) Terminology and Nomenclature Strictly speaking, dialysis is solute removal by diffusion of the solute across a membrane (however, in clinical settings dialysis usually means a combination of diffusion and convection) during dialysis the electrolyte solution (dialysate) runs in the opposite direction (countercurrent) to blood flow separated by a semi-permeable membrane.
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Dialysis Dialysis: The process of removing waste products and excess fluid from the body. Dialysis is necessary when the kidneys are not able to adequately filter the blood. Dialysis allows patients with kidney failure a chance to live productive lives. There are two types of dialysis: hemodialysis and peritoneal dialysis. Each type of dialysis has advantages and disadvantages.
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- Dialysis works on the principles of the diffusion of solutes and ultrafiltration of fluid across a semi-permeable membrane. Diffusion is a property of substances in water; substances in water tend to move from an area of high concentration to an area of low concentration.
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- Hemodialysis: A medical procedure to remove fluid and waste products from the blood and to correct electrolyte imbalances. This is accomplished using a machine and a dialyzer, also referred to as an artificial kidney.. Hemodialysis is used to treat both acute (temporary) and chronic (permanent) kidney failure.
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Peritoneal dialysis Peritoneal dialysis. Peritoneal dialysis (PD) is a type of dialysis that uses the peritoneum in a person's abdomen as the membrane through which fluid and dissolved substances are exchanged with the blood. It is used to remove excess fluid, correct electrolyte problems, and removed toxins in those with kidney failure.
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dialysis (dīăl`ĭsĭs), in chemistry, transfer of solute (dissolved solids) across a semipermeable membrane. , transfer of a liquid solvent through a semipermeable membrane that does not allow dissolved solids (solutes) to pass. Osmosis refers only to transfer of solvent; transfer of solute is called dialysis.
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Excretory system Hemodialysis: Process of separating wastes from the blood by passage through a semipermeable membrane. Nephron: Filtering unit of the kidney. Urea: Chemical compound of carbon, hydrogen, nitrogen, and oxygen produced as waste by cells that break down protein. Ureter: Tube that carries urine from a kidney to the urinary bladder. Urethra: Duct leading from the urinary bladder to outside the body through which urine is eliminated.
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Can Bacteria Survive Using Only Glycolysis? Glycolysis is an energy-extraction process used by just about every organism on Earth. It involves splitting a glucose molecule into two parts, and converting the energy from the broken chemical bond into energy the cell can use.
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- 1 Simple diffusion refers to diffusion of substances without the help of transport proteins. 2  Facilitated diffusion refers to diffusion of substances across a cell membrane with the help of transport proteins.  Dialysis refers to the diffusion of solutes across a selectively permeable membrane. A selectively permeable membrane (also called a semipermeable membrane) is a membrane that allows some substances to pass through easily while other substances pass through very slowly or not at all.
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- Show animation full screen in new window. The dialysis fluid contains water, glucose, salts and various substances at the correct concentration for the body. The dialysing membrane allows small particles such as water, urea and mineral ions to pass through it.he process of cleansing the blood through a dialysis machine after the kidneys have failed. Dialysis machine. A machine which is used to replace the function of the kidney, removing urea and balancing the water and salt content of the blood of patients with kidney failure. Diffusion.
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Hemodialysis Hemodialysis machine. Hemodialysis, also spelled haemodialysis, commonly called kidney dialysis or simply dialysis, is a process of purifying the blood of a person whose kidneys are not working normally.
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Dialysis Dialysis facts. Kidney dialysis is a procedure that is a substitute for many of the normal functions of the kidneys. Dialysis allows patients with kidney failure a chance to live productive lives. There are two types of dialysis: hemodialysis and peritoneal dialysis.
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Arteriovenous fistula In peritoneal dialysis, the blood is filtered through a membrane that has been placed in the abdomen. Blood remains in the body and waste material is filtered into an exchange fluid through an opening in the abdomen called a port. Only hemodialysis requires an AV fistula or other vascular access.
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dialysis dialysis - separation of substances in solution by means of their unequal diffusion through semipermeable membranes. 1  chemical analysis, qualitative analysis - the act of decomposing a substance into its constituent elements.
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Hemodialysis Hemodialysis in progress. Hemodialysis machine. Hemodialysis, also spelled haemodialysis, commonly called kidney dialysis or simply dialysis, is a process of purifying the blood of a person whose kidneys are not working normally. This type of dialysis achieves the extracorporeal removal of waste products such as creatinine and urea and free water from the blood when the kidneys are in a state of kidney failure. Hemodialysis is one of three renal replacement therapies. An alternative method for extracorporeal separation of blood components suc
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Hemolysis Hemolysis or haemolysis, also known by several other names, is the rupturing (lysis) of red blood cells (erythrocytes) and the release of their contents (cytoplasm) into surrounding fluid (e.g. blood plasma). Hemolysis may occur in vivo or in vitro (inside or outside the body).