structures, specialties, & pathology urinary system ch 9
TRANSCRIPT
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Structures, Specialties, & Pathology
Urinary system Ch 9
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Structures
• Kidneys– 2 layers that surround the renal pelvis
• Renal cortex– the outer layer–Contains over one million nephrons
• Renal medulla– Inner layer–Contains most of the urine-collecting
tubules
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Structures
• Nephrons– Glomerulus– Renal pelvis
• Ureters– Carry urine from kidneys to bladder– 10 to 12 inches long
• Bladder – Hollow muscular organ– Located in the anterior portion of the pelvic cavity– Holds about one pint of urine
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Structures
• Urethra – Two urinary sphincters, one at each end– Urethral meatus or urinary meatus is the external
opening of the urethra– Female urethra is about 1.5 inches long– Male urethra is about 8 inches
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Specialties
• Nephrologist– Specializes in diagnosing and treating diseases and
disorders of the kidneys• Urologist
– Specializes in diagnosing and treating diseases and disorders of the urinary system of females and the genitourinary system of males
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Pathology
• Renal failure– Acute renal failure– Chronic renal failure– Anuria – End-stage renal disease– Uremia
• Uremic poisoning• A toxic condition caused by excessive amount
of urea and other waste products in the bloodstream
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Pathology
• Nephrotic syndrome– Edema– Hyperlipidemia– Hypoproteinuria– Hyperproteinuria
• Abnormally high concentration of protein in the urine
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Pathology
• Kidneys– Glomerulonephritis– Hydronephrosis
• Dilation of the renal pelvis of one or both kidneys.
• The result of an obstruction of the flow of urine– Nephrectasis
• Distention of a kidney
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Pathology
– Nephritis– Nephroptosis– Nephropyosis– Pyelitis– Pyelonephritis
• Inflammation of the renal pelvis and of the kidney
– Renal colic
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Pathology
• Stones – Calculus
• Nephrolithiasis– Kidney stone
• Cystolith – Stone found in the bladder
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Pathology
• Ureters – Hydroureter– Ureterectasis
• The distention of a ureter– Ureterorrhagia– Ureteralgia
• Pain in the ureter– Ureterostenosis
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Pathology
• Urinary bladder– Cystalgia
• Bladder pain– Cystitis– Interstitial cystitis– Cystocele– Cystorrhagia
• Bleeding from the bladder– UTI– Vesicovaginal fissure
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Pathology
• Urethra – Reflux– Urethralgia– Urethritis– Urethrorrhagia– Urethrorrhea– urethrostenosis
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Pathology
• Urethra continued– Abnormal openings
• Epispadias• Hypospadias• Paraspadias
–A congenital abnormality in males in which the urethral opening is on one side of the penis
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Pathology
• Urination – Diuresis
• The increased excretion of urine– Dysuria
• Difficult or painful urination– Enuresis
• Involuntary discharge of urine• Nocturnal enuresis also known as bed-wetting
– Nocturia• Excessive urination during the night
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– Oliguria– Polyuria
• Excessive urination– Urinary retention– Incontinence
• Stress incontinence• Urge incontinence