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determines the membrane permeability of the collecting duct to water – antidiuretic hormone (ADH),
mineralocorticoid secreted by the adrenal cortex – aldosterone,
stimulates the distal tube to reabsorb sodium and excrete potassium – aldosterone,
secreted by the juxtaglomerular apparatus cells; activates angiotensinogen – renin,
secreted by the walls of the heart; causes the renal excretion of sodium and water – brain natruretic peptide (BNP)
What subsctance is not eliminated through the kidneys and Urinary System? CO2
Renin: is a blood pressure regulating substance
Micturation refers to urination
Which of the following is least true of Aldosterone? determines the membrane permeability of the collecting duct to water
ADH determines the membrane permeability of the collecting duct to water
A drug that blocks the renal reabsorption of Sodium causes diuresis
Why is glucose normally not excreted in the urine? all filtered glucose is reabsorbed
Facts about urine: Normal urine is sterile. It contains fluids, salts and waste products, but it is free of bacteria, viruses and fungi. The tissues of the bladder are isolated from urine and toxic substances by a coating that discourages bacteria.
Parts of renal system 2 kidneys 2 urethers Two sphincter muscles 2 sphincter muscles Nerves in the bladder Urethra
Functions of renal system Regulation of water and inorganic ion balance. Removing metabolic waste form blood and excreting in urine Removing foreign chemicals from blood Gluconeogenesis Endocrine functions: Renin, erythropoetin
Albuminuria The abnormal presence of albumin protein in the urine
Erythropoietin A substance released by the kidneys and liver that promotes red blood cell formation
Urology The scientific, clinical, and especially surgical aspects of the study of the urine and the genitourinary tract in health and disease
Cystitis Infection of the urinary bladder
Creatine Nitrogenous waste from muscle metabolism that is excreted in urine
Epididymis A long, coiled tube that rests on top and lateral side of each testes
BPH A condition in which the signs and symptoms include urinary urgency and frequency, difficulty starting urination, hematuria and repeated urinary tract infections (UTI's)
Cryptorchidism Undescended testicles
Enuresis Bed wetting
Renal calculi Kidney stones
Three processes of urine formation Glomerular formation- Occurs in glomerulus * Tubular reabsorption and secretion- reabsorption occurs in PCT/ secretion occurs in DCT * Water conservation- occurs in collecting duct (CD)
List the signs and symptoms of a urinary tract infection (UTI) Overwhelming urge to urinate (urgency) * Burning of urination (Dysuria )* Urgency with frequent, small amount of urine * Blood in the urine (hemoturia) or cloudy, dark, foul smelling urine * Frequent urination at night (nocturia)
Created by: Abraham321