[2015] Efren Silva: The Urinary System

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by ctrokay
Last updated 7 years ago

Human Anatomy

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[2015] Efren Silva: The Urinary System

2 Kidneys: Extract waste from blood, balance body fluids, form urine2 Ureters:Transport urine from kidneys to bladderUrinary Bladder: Recieves and stores urineUrethra: Urine elimination


Main Components ' Functions

Constituents Of Urine

Urine Fromation

The Urinary System

•Excretion of unwanted substances such as excess salts, toxins, ' waste products from cells•Removes Waste products•To maintain water balance(homeostasis) and electrolyte balance(sodium-potassium, calcuim)•To maintain pH balance (acids versus bases) •Production of hormones •Contols blood volume and maintains blood pressure

Signs of Renal Failure

Secretion-moves additional substances from blood to nephron Countert mechanism- concentrates the urine and reduces volume excreted -hormone:ADH(Antidiuretic Hormone)

Filtration-Glometular filtration allows all diffusible material to pass from the blood to the nephron Reabsoprtion- moves useful mayterials back to the blood

•Weakness/Fatigue/Lethargy•Shortness of breath•Generalized Swelling•Congestive Heart Failure•Metabolic Acidosis•High Blood Potassium •Decreased urine


Normal Constitutents: Water, Urea, Chloride, Sodium, Potassium, dissolves ions and inorganic/organic compundsAbnormal Constituents: Carbon, proteins, ketone bodies, glucose, albumin, pus(white blood cells, erythrocytes, bile salts/pigments

A properly functioning kidney helps prevent salt, extra water, and waste from accumulating in your body. When your kidneys don't perform these functions due to disease or injury, dialysis can help purify the blood and remove waste.There are two different types of dialysis:Hemodialysis involves using an artificial kidney, known as a hemodialyzer, to remove waste and chemicals from the blood. It accesses the blood through a minor surgical procedure in the arm or leg, or through a plastic tube in the neck called a catheter.Peritoneal dialysis involves the surgical implantation of a catheter into your stomach area. During treatment, a special fluid called dialystate is pumped into the abdomen where it draws waste out of the bloodstream.Dialysis procedures remove nitrogenous end-products of catabolism and begin the correction of the salt, water, and acid-base derangementsassociated with renal failure. So in summarry , dialysis is the artificial process of eliminating waste (diffusion) and unwanted water (ultrafiltration) from the blood. Our kidneys do this naturally. Some people, however, may have failed or damaged kidneys which cannot carry out the function properly - they may need dialysis.

Kidney Disorders

Pylonephritis: Inflammation of renal pelvis ' tkidney tissue. May be actue/chronic caused by urinary tract infection. Treatment: antibiotics, fever control rest and adequate fluids. Hydronephrosis: Distention of renal pelvis ' calyces with acummullated fluid caused by obsrtuction of urine flow (Pregnant Women, enlarged prostate, kidney stones, tumor. Treatment: Removal of the obstruction Polcystic Kidney: Many fluid-containing sacs to develop in the active tissue and gradually destoy functioning parts ; gentic. Treatment: Translpant or dialysis.


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