Function of Kidneys:
Kidneys are filter organs present in vertebrates which help in removing water soluble wastes from the blood. A normal human body possesses two kidneys which are bean shaped and weigh around 150 grams each. Kidneys function as the waste disposal system of our body. Every day kidneys are processing around 200 litres of filtrate while absorbing large amount of it and producing around 1 to 2 litres of waste. Kidneys allow reabsorption of molecules from this filtrate into the blood. Thereafter these molecules are transferred to urinary bladder and then expelled from the body as urine. Kidneys are also producing hormones like erythropoietin, vitamin D and enzyme renin. Kidneys perform homeostatic functions which includes regulating
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Renal ultrasonography is done for evaluating renal disease and blockage of the urinary system. Aortorenal angiography also helps in the diagnosis of many renal vascular diseases. Renal biopsy is useful for identification of intra renal causes of AKI.
Chronic kidney disease: In most of the cases kidney function starts worsening over a number of years which is actually good as it can help for early detection and further medication. Moreover dietary and lifestyle changes can improve the functioning of kidneys. Chronic kidney disease (CKD) or chronic renal disease (CRD) occurs due to progressive and gradual loss in renal function. Symptoms are not specific and might include loss of appetite and general illness.
The most common causes of CKD are
• diabetes mellitus
• hypertension or high blood pressure
• Glomerulonephritis is a group of diseases causing inflammation and damage to the kidneys.
• Inherited diseases like polycystic kidney disease.
• Malformations during pregnancy.
• Lupus and other such diseases affecting the body's immune system.
• Kidney stones or an enlarged prostate gland in men.
• Recurrent urinary infections.
Symptoms of kidney failure include:
• Vomiting
• Weight
2. Esophagus: 10 in. long and extends from the pharynx to the stomach. Food moves down the esophagus by the peristalsis. The sphincter, a circular muscle at the entrance of the stomach opens and closes to allow food to enter the stomach.
The kidneys are located in the posterior section of the retroperitoneal cavity and are small, dark red kidney-bean shaped organs in the lower part of the rib cage (Marieb, The Urinary System, 2015). They are undervalued organs considering how essential they are for the body’s ability to maintain homeostasis. The kidneys filter about 120-150 quarts of blood to produce about 1-2 quarts of urine each day (NIH, 2014). Blood initially enters the kidneys through the renal artery. It then flows into the segmental artery before moving into the interlobar artery. From the interlobar artery the filtrate enters the arcuate artery before branching into the cortical radiate artery, which feeds into the afferent arteriole, before passing into the glomerulus where it begins to filter out waste. The filtered waste is then collected by renal tubule. The tubules drain to collecting ducts and all of these components together makes up a small unit called a nephron. Each kidney has over a million nephrons (Marieb, Blood Supply/ Nephrons, 2015). They filter out wastes that run through different body systems via blood; the majority of that waste is nitrogenous wastes, toxins, excess fluids, electrolytes, and drugs. These waste products are eliminated as urine. While waste are removed vital enzymes, hormones, and water are returned
The urinary tract consists of two kidneys, to ureters, urethra, and the urinary bladder. The urinary system works to remove waste from the body, maintain homeostasis of water, blood pressure, and regulate the body’s pH levels. The kidneys regulate several important internal conditions by excreting substances out into the body. After urine has been produced in the kidneys it is then transported to the urinary bladder via the ureters. The urinary bladder then holds the urine until the body is ready for excretion through the urethra.
In 1954, the first organ transplant was conducted successfully in the United States. (Clemmons, 2009) Nowadays, the technology of organ transplant has greatly advanced and operations are carried out every day around the world. According to current system, organ sales are strictly prohibited in the United States. (Clemmons, 2009) However, the donor waiting list in the United States has doubled in the last decade and the average waiting time for a kidney is also increasing. (Clemmons, 2009) In the year 2007, over 70,000 patients were on the waiting list for a kidney and nearly 4500 of them died during the waiting period. In contrast to the increasing demand for kidney, organ donation has been in a decrease. (Wolfe, Merion, Roys, & Port, 2009) Even the government puts in great effot to increase donation incentives, the gap between supply and demand of organs still widens. In addition, the technology of therapeutic cloning is still not mature and many obstacles are met by scientists. (Clemmons, 2009) Hence, it is clear that a government regulated kidney market with clear legislation and quality control is the best solution to solve the kidney shortage problem since it improves the lives of both vendors and patients.
The renal disease are common nowadays .The acute renal failure is a medical term means that the kidneys stopped from working and not able to clear toxins from body ,not able to maintained a stable electrolyte balance inside the body and not able to secret the extra fluid as urine outside the body. The renal replacement therapy (RRT) or dialysis has been discovered on 1913 by Able, Rowntree and Turner in London, UK.
The urinary system is composed of the kidneys, the ureters, the urinary bladder, and the urethra ("Urinary System", n.d.). These organs and tubes shape what is called the urinary tract, the body’s drainage system for removing urine from the kidneys, storing the urine, and then expelling it during urination ("Urinary System", n.d.). The first part of the urinary system is the kidneys. The kidneys are a pair of bean-shaped organs located in the upper abdominal cavity against the back muscles ("Urinary System", n.d.). The kidneys are responsible for filtering the blood to remove waste and chemicals to produce urine ("Urinary System", n.d.). Blood is carried through the renal arteries to the kidneys where they are filtered by nephrons - tiny filtering units in both kidneys that remove harmful substances and waste from the blood (Durani, 2015). The toxins and waste sifted by these nephrons are blended with water to produce urine (Durani, 2015). On average, the kidneys will filter 120 to 150 quarts of blood a day to produce about 1 to 2 quarts of urine ("The Urinary Tract & How It Works", 2014). The next
Healthy kidneys clean the blood by filtering out extra water and wastes. They also make hormones that keep your bones strong and blood healthy. When both of your kidneys fail, your body holds fluid. Your blood pressure rises. Harmful wastes build up in your body. Your body doesn't make enough red blood cells. When this happens, you need treatment to replace the work of your failed kidneys.
The number of people in the United States with kidney stones has dramatically increased over the past 30 years. Renal calculus, also known as kidney stones, has been around for a very long time. Scientists have found evidence of them in a 7,000 year old mummy in Egypt. Lithotomy, which is the surgical removal of the stones, is one of the earliest known medical procedures. In my opinion, renal calculus is a great concern and it is very important that everyone be educated about them.
The nephron produces urine by removing excess water, waste, and other substances from the blood. The nephron also returns substances such as sodium, potassium or phosphorus whenever any of the substances run low. There are about one million nephrons in each kidney.
Kidney stones can be diagnosed by a general physician or a urologist (Kidney Stones). Diagnosis of a kidney stone starts with a medical history, some physical examination of the patient, and imaging tests of the kidney. “Your doctors will want to know the exact size and shape of the kidney stones. This can be done with a high resolution CT scan from the kidneys down to the bladder or an x-ray called a ‘KUB x-ray’(kidney-ureter-bladder x-ray)” (Kidney Stones). This will show the size of the stone and its position. This test is done by injecting die into the patient through an IV and then looking at how the die is passed through the kidney to see where the blockage occurs (Kidney stones). This test takes about 1 hour in total. Another way to diagnose stones is through a renal ultrasound. A renal ultrasound is an ultrasound image taken of the lower back, exposing the kidney. This test is good for the patient because it doesn’t require any injections or radiation. It also takes much less time (Kidney Stones). Diagnosis will also be continued after the stone has been passed. “The stone will be analyzed after it comes out of your body, and your doctor will test your blood for calcium, phosphorus and uric acid” (Kidney Stones). This way, doctors can create different treatment plans to prevent this type of stone from developing
All play a role in removing waste from your body. Your kidneys filter waste from your blood and regulate the concentrations of many substances. Tubes called ureters carry urine from your kidneys to the bladder, where it’s store until it exits your body through the urethra.
The purpose of this paper is to take an in depth look at a renal diet which is designed for people suffering from certain kidney conditions. A renal diet can be described as a nutritional regime which is: “low in sodium, phosphorous and protein... [It] also promotes the importance of consuming high-quality protein and usually limits fluids. Some patients may also need to limit potassium and even calcium” (Nephcure). Throughout the course of this paper various aspects are addressed. these include: the role of the kidneys, the importance of professional guidance, the reasons why people follow a renal diet, monitoring sodium intake, monitoring potassium intake, monitoring phosphorus intake, protein consumption, and fluid control.
Kidney Function Introduction and definition of terms: The kidneys are the main organs in the urinary system. They filter waste products out of blood from the renal artery. These are then excreted. Useful solutes are reabsorbed into the blood. They also have a major homeostatic role in the body, and help to control the water content (osmoregulation) and pH of the blood.
Furthermore, they are involved in the reabsorption of nutrients in the bloodstream and they can regulate the acidity of the blood. Besides the regulation of the fluids and ions, the kidneys are also responsible for the regulation of many different hormones that are involved in homeostasis and metabolism. Because of their importance in the regulation of substances in the body, when the kidneys stop working properly all the body is influenced by that creating disequilibrium in the maintenance of homeostasis and control of all the metabolic functions which can indirectly cause other problems to the body.... ... middle of paper ... ...
Chronic Kidney Disease. Mayo Foundation for Medical Education and Research, 2014. Web. 20 May 2014.