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Functions of kidney
Functions of the kidney essay
Functions of kidney
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The kidney is a bean shaped organ found in the lumbar region of the body. The kidney is one of the most important organs in our body. When the kidney is not working correctly it effects many other systems in the body. The three main functions of the kidney are filtering the blood, reabsorbing key molecules and maintaining water and ion balance. Although the kidney has many other functions these are the three that will be discussed in this paper. Our kidneys filter up to 200 quarts of blood every day. According to the … the kidney filters out waste products like urea, which is a nitrogen-based toxin created when amino acids are broken down.(healthline) The kidney also filters out excess salt and water. The filtering all happens in the nephrons …show more content…
According to the …. reabsorption ions needed in the body happens inside the lumen of the nephron, small molecules and ions are reabsorbed through different types of diffusion.(…) Kidneys are responsible for the balance of many key substances, including glucose, urea, sodium, amino acids, chloride and potassium to name just few. According to …… there are specialized proteins called transporters located on the membranes of the various cells of the nephron. These proteins aid in active transport of some of the larger ions, others are reabsorbed through passive diffusion. Many of these ions including glucose, potassium and chloride are main components of other functions in the other systems in the body. The kidney being able to reabsorb these key molecules is crucial. Sodium reabsorption is especially important because it is needed for a sodium potassium balance used throughout body. Muscle contractions including cardiac muscle and nerve impulses all depend on a sodium potassium balance that is maintained by the …show more content…
Water balance in the kidney directly effects the blood water balance in the body. Soso discusses how our body’s cells are filled with a tissue fluid that is ideally kept at an isotonic state.(..) When at an isotonic state the concentration of cell fluid is the same as the cell contents. When the water balance in the cell is too high or too low cells can shrink or become bloated and lyse. According to the thirst is stimulated by an increase in plasma osmolality, a decrease in plasma volume, or a decrease in blood pressure. The water balance in the body also directly effects blood pressure.(…) Water balance is a very important part of the kidney’s many functions because the water balance effects, blood pressure, hydration status, and cardiac functions along with other
Vital to maintenance of homeostasis is the regulation of plasma osmolality. The Renin-Angiotensin-Aldosterone system, which works to regulate blood pressure, plays a crucial role in fluid balance. When dehydration occurs, blood osmolality increases, which stimulates the release of antidiuretic hormone (ADH), ultimately leading to increased water reabsorption. This leads to more concentrated urine, and less concentrated plasma. Low plasma osmolality works in the opposite fashion: ADH release is inhibited, water reabsorption decreases, and urine is less concentrated. The added electrolytes and carbohydrates in Gatorade would facilitate greater fluid retention through stimulation of renin and vasopressin, increasing urinary sodium reabsorption (3). Studies of both urine volume and plasma volume changes are eff...
Hydrating is very important to your body's ability to function. Your body must intake water as we constantly let off water as said i pg 1 of ‘Strange but True: Drinking Too Much Water Can Kill’ it states “At every moment water escapes the body through sweat, urination, defecation or exhaled breath, among other routes.” As it's been told that water is good for you and needed no one has ever thought of actually being able to overdue it. When you take in water your kidney stores up to a gallon of water so as to keep you hydrated. In the article mentioned previously it also states in pg 10, “every hour a healthy kidney at rest can excrete 800 to 1,000 milliliters … therefore a person can drink up to 800 to 1,000 milliliters per hour without experiencing a net gain in water”. Therefore your body is built
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
Kidneys play an important role in the unary tract. They are located on each side of the spine, just below the ribcage. Each kidney is connected to the bladder by ureters. The kidneys have many functions, but the most common functions are to clean waste, control chemicals, and regulate fluid in the body which makes up the urine. Urine collects in the kidney before entering the ureters and as time passes more materials are added. When calcium and oxalate or phosphates are combined in the kidney tiny stones are formed called nephrolithiasis, commonly known as kidney stones. These stones can be very painful and “increases risks for diabetes, high blood pressure, and osteoporosis” (Goldfarb, 2009). About ten percent of all people will have kidney stones in their lifetime. Kidney stones are most frequently found in white men over the age of forty, relatives of kidney stone patients, and people who have formerly had kidney stones.
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.
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.
Opium, the first opioid, is derived from the sap of opium poppies, whose growth and cultivation dates back to the ancient civilization of Mesopotamia around 3400 BC. Egyptians and Persians initially used opium. Eventually spreading to various parts of Europe, India, China, and the Middle East. During the 18th century, physicians in the U.S. used opium as a therapeutic agent for multiple purposes, including relieving pain in cancer, spasms from tetanus, and pain attendant to menstruation and childbirth. It was merely towards the end of the 18th century that some physicians came to recognize the addictive quality of opium.
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.
Potassium is one of the most important elements in human diet. To begin with, potassium works with sodium for various reasons. For example, it helps to regulate body waste, control heart rhythms, and assist in reducing high blood pressure. It also aids in clear thinking by sending oxygen to the brain. This element is crucial to the maintenance of the nervous system and the muscular system. Potassium is an electrolyte, and therefor regulates the balance of fluids inside and outside the cells, including blood.
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.
“Donating blood is safe and easy, and takes less than an hour and one blood donation can help as many as three or four different people! In what other activity, can so little time do so much” ("Feel Prepared. Give Blood." ). Just think, if no one gave blood then how many people would still be living who really needed it? Despite all our medical advances, there is no good man-made substitute for human blood; this is why blood donations are so important. Some people strongly believe that donating blood is bad, but what people don’t know is that it actually has surprisingly good benefits like reducing the risk of cancer, burning calories, and even saving someone’s life, so everyone who has the opportunity to give
These wastes are derived from the liquid and food that the individual had consumed. In cases of compromised kidney function, the kidneys are no longer able to remove or filter wastes in the normal way. This means that wastes are left to accumulate in the bloodstream. When this scenario takes hold, it can negatively impact the patient 's electrolytes, therefore, positive action has to be taken to optimize the situation. When patients follow a renal diet it can help to slow down the advancement of total kidney failure, and ameliorate kidney function. Along with chloride and potassium, sodium represents one of the body 's main three electrolytes. The latter manipulate the fluids with enter and leave the body’s cells and tissues. Therefore, patients with renal disease must monitor their intake of electrolytes. Keeping a daily food dairy is essential (Nephcure), and will be of great benefit to the dietitian who can pinpoint certain details.
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 ... ...
Kidney function as a filter for harmful substances from which we eat and drink. Renal function would be maximized if the urine osmotic force in the body reaches 1,000 to 12,000 osmosis ml / kg of water. With reduced water intake during fasting to practice, to achieve the targets in the urine osmotic strength can be achieved so that in the end will be good for kidney health.
By the time a person feels thirsty, his or her body has lost over 1 percent of its total water amount.