Chapter 9 Flashcards
Nephr/o
Kidneys
Ren/o
Kidneys
Kidneys
Nephr/o, ren/o
Filter the blood to remove waste products, maintain electrolyte concentrations, and remove excess water to maintain the fluid volume within the body
Pyel/o
Renal pelvis or bowl of kidney
Renal pelvis
Pyel/o
Collects urine produced by the kidneys
Ur/o
Urine or urinary tract
Urin/o
Urine
Urine
Ur/o, urin/o
Liquid waste products to be excreted
Ureter/o
Ureters
Ureters
Ureter/o
Transport urine from the kidneys to the bladder
Cyst/o
Urinary bladder, cyst, or sac of fluid
Urinary bladder
Cyst/o
Stores urine until it is excreted
Urethr/o
Urethra
Urethra
Urethr/o
Transports urine from the bladder through the urethral meatus, where it is excreted
Prostat/o
Prostate
Prostate
Prostat/o
A gland of the male reproductive system that surrounds the male urethra. Disorders of this gland can disrupt the flow of urine
-cele
Hernia, tumor, or swelling
Dia-
Through, between, apart, or complete
-ectasis
Enlargement, stretching, or dilation
Glomerul/o
Glomerulus
Lith/o
Stone or calculus
-lysis
Separation, breakdown, setting free, destruction or loosening
-pexy
Surgical fixation
-tripsy
To crush
-uria
Urination or urine
Ablation
The removal of a body part or the destruction of its function through the use of surgery, hormones, drugs, heat, chemicals, electrocautery, or other methods. This term is used to describe some types of treatment of prostate cancer
Anuria
The absence of urine formation by the kidneys. An- means without, -uria means urine. This condition is often caused by kidney failure or a urinary tract obstruction
Benign prostatic hyperplasia
BPH. An abnormal enlargement of the prostate gland that most often occurs in men older than age 50. Also known as benign prostate hypertrophy or enlarged prostate. This condition can make urination difficult and causes other urinary-tract problems for men. It is not caused by cancer or infection
Chronic kidney disease
CKD. The progressive loss of renal function over months or years. Also known as chronic renal disease or kidney failure. This common condition, which can be life-threatening, may result from diabetes mellitus, hypertension, or a family history of kidney disease. The buildup of waste in the blood from chronic kidney disease can be a contributing factor in heart attacks and strokes
Cystitis
Inflammation of the bladder. Cyst means bladder, -itis means inflammation
Cystocele
A hernia of the bladder through the vaginal wall, also called a prolapsed bladder. Cyst/o means bladder, -Cele means hernia. This sometimes occurs as a result of pregnancy or childbirth
Cystolith
A stone located in the urinary bladder. Cyst/o means bladder, -lith means stone
Cystopexy
The surgical fixation of the bladder to the abdominal wall. Cyst/o means bladder, -pexy means surgical fixation
Cystoscopy
The visual examination of the urinary bladder using a cystoscope. Cyst/o means bladder, -scopy means visual examination.
Dialysis
A procedure to remove waste products, such as urea, creatinine, and excess water from the blood of patients whose kidneys no longer function. Dia- means complete or through, -lysis means separation
Diuresis
The increased output of urine. Di- means through, -uresis means urination
Edema
Excessive fluid accumulation in body tissues that can be symptomatic of nephrotic syndrome and other kidney diseases. This swelling can be in the area around the eyes, the abdomen, or the legs and feet
End-stage renal disease
The final stage of chronic kidney disease that is fatal unless the functions of the failed kidneys are successfully replaced by dialysis or with a successful kidney transplant
Enuresis
The involuntary discharge of urine. En- means into,-uresis means urination
Epispadias
A congenital abnormality affecting the opening of the urethral opening. In the male, the opening is located on the upper surface of the penis. In the female, the urethral opening is located in the region of the clitoris
Extracorporeal Shockwave lithotripsy
ESWL. The use of high-energy ultrasonic waves traveling through water or gel to break up kidney stones into fragments, which are then excreted in the urine. Most common kidney stone treatment. Lith/o means stone, -tripsy means to crush.
Glomerulonephritis
A form of nephritis caused by inflammation of the glomeruli that causes red blood cells and proteins to leak into the urine. Glomerul/o means glomeruli, nephr means kidney, -itis means inflammation
Hemodialysis
A procedure that filters waste products directly from the patient’s blood to replace the function of damaged kidneys. Hem/o means blood, Dia means complete or through,-lysis means separation. Most common type of dialysis. The cleansed blood is returned to the body through a vein. These treatments each take around four hours and must be repeated about three times a week. They can be done at a hospital, a dialysis center, or at home with the necessary equipment
Hydronephrosis
The dilation (swelling) of one or both kidneys that is the result of an obstruction of the flow of urine. Hydr/o means water, nephr means kidney, -osis means abnormal condition or disease. This condition can be caused by problems associated with the backing up of urine due to an obstruction such as a nephrolith (kidney stone) or a stricture (narrowing) in the ureter
Hydroureter
Distention (swelling) of the ureter with urine that cannot flow because the ureter is blocked. Hydr/o means water,-ureter means ureter
Hyperproteinuria
The presence of abnormally high concentration of protein in the urine. Hyper- means excessive, protein means protein, -uria means urine
Hypoproteinemia
The presence of abnormally low concentrations of protein in the blood. Hypo- means deficient or decreased, protein means protein, -emia means blood condition
Hypospadias
A congenital abnormality in the placement of the urethral opening . In the male, the urethral opening is on the ventral side (underside) of the penis. In the female, the urethral opening is into the vagina
Incontinence
The inability to control the excretion of urine and/or feces
Interstitial cystitis
A chronic inflammation within the walls of the bladder. The symptoms of this condition are similar to those of cystitis, however, they do not respond to traditional treatment.
Intravenous pyelography
A radiographic study of the kidneys and ureters using a contrast medium to diagnose changes in the urinary tract. Also known as excretory urography. Pyel/o means renal pelvis, -graphy means the process of creating a picture or record. A contrast medium is administered intravenously to clearly define these structures in the resulting image. This test is used to diagnose changes in the urinary tract resulting from nephroliths, infections, enlarged prostate, rumors, and internal injuries after an abdominal trauma
Nephrolith
A stone located in the kidneys, also known as renal calculus or a kidney stone. Nephr/o means kidney, -lith means stones
Nephrolithiasis
The presence of a stone or stones in the kidneys. Nephr/o means kidney, -lithiasis means presence of stones. As these stones travel with the flow of urine, they are named for the location where they become lodged
Nephrolysis
The freeing of a kidney from adhesions. Nephr/o means kidney, -lysis means setting free. The term nephrolysis can also describe a pathological condition in which there is destruction of renal cells. -lysis also means destruction
Nephrons
The microscopic functional units of each kidney where urine is produced through the processes of filtration, reabsorption, and secretion. Each nephron contains a glomerus surrounded by the Bowman’s capsule and a renal tubule. Blood enters the kidney through the renal artery and flows into the nephrons. After passing through the filtration system of the glomerus, the filtered blood containing protein and blood cells leaves the kidney and returns to the bloodstream through the renal vein. The remaining filtrate flows into the renal tubule, where elements, including some water, sugar, and salts, are returned to the bloodstream via a nearby capillary. Remaining waste products are continually converted into urine, which is transported to the renal pelvis and collected in preparation for entry into the ureters. If waste products are not efficiently removed from the bloodstream, the body cannot maintain homeostasis with a stable balance of salts and other substances
Nephropathy
Any kidney disease including degenerative and inflammatory conditions. Nephr/o means kidney, -pathy means disease
Nephroptosis
The prolapse, or dropping down, of a kidney into the pelvic area when the patient stands, also known as a floating kidney. Nephr/o means kidney, -ptosis means droop or sag
Nephropyosis
Suppuration of the kidney. Also known as pyonephrosis. Nephr/o means kidney, py means pus, -osis means abnormal condition or disease.
Nephrostomy
The placement of a catheter to maintain an opening from the pelvis of one or both kidneys to the exterior of the body. Nephr means kidney, -ostomy means creating an opening. In a kidney affected by hydronephrosis, this allows urine from the kidney to be drained directly through the lower back. Nephrostomy tubes are also used to gain access to the kidneys for diagnostic procedures
Nephrotic syndrome
A groups of conditions in which excessive amounts of proteins are lost in the urine. This condition, which is usually caused by damage to the glomeruli, resulting in abnormally low levels of protein in the blood. Also known as nephrosis. Nephr/o means kidney, -tic means pertaining to. Causes of nephrotic syndrome include diabetes mellitus, infection, and kidney disorders
Neurogenic bladder
A urinary problem caused by interference with the normal nerve pathways associated with urination. Neur/o means nerve, -genic means created by. Normal urinary function depends on nerves to sense when the bladder is full and to control the muscles that either retain the urine or allow the bladder to empty. Depending on the type of neurological disorder causing the problem, the bladder may empty spontaneously, resulting in incontinence. In contrast, the problem can prevent the bladder from emptying at all or from emptying completely. This can result in urinary retention with overflow leakage. Some if the causes of this condition are a tumor of the nervous system, trauma, neuropathy, or an inflammatory condition such as multiple sclerosis
Nocturia
Frequent and excessive urination during the night. Noct means night, -uria means urination
Nocturnal enuresis
Urinary incontinence during sleep. It is also known as bed-wetting
Oliguria
Scanty urination. Olig means scanty, -uria means urination. This can be caused by dehydration, renal failure, or a urinary tract obstruction
Percutaneous nephrolithotomy
The surgical removal of a nephrolith through a small incision in the back. Nephr/o means kidney, lith means stone, -otomy means surgical incision. A small tube is temporarily inserted through the incision into the kidney. First urine is removed, then the stone is crushed and the pieces are removed. This procedure is used if ESWL has not been successful, if an infectionis present, or if the stone is particularly large
Peritoneal dialysis
Dialysis in which the lining of the peritoneal cavity acts as a filter to remove waste from the blood. The sterile dialysate flows into the peritoneal cavity around the intestine through a catheter implanted in the abdominal wall. This fluid is left in for a period of time to absorb waste products and then drained out through the tube. The process is normally repeated several times during the day and can be done using an automated system. Considered less effective than hemodialysis
Polycystic kidney disease
PKD. An inherited kidney disorder characterized by the growth of numerous fluid-filled cysts in the kidneys. These cysts, which slowly replace much of the mass of the kidney, reduce the kidney function, which eventually leads to kidney failure. Poly- means many, cyst means cyst, -ic means pertaining to
Polyuria
Excessive urination and is a common symptom of diabetes. Poly-means many, -uria means urination
Prostatism
A disorder resulting from the compression or obstruction of the urethra due to benign prostatic hyperplasia. Prostat means prostate gland, -ism means condition of. This can produce difficulties with urination, including urinary retention
Pyelotomy
A surgical incision into the renal pelvis. Pyel means renal pelvis, -otomy means surgical incision. This procedure is performed to correct obstructions such as a stone lodged in the junction between the renal pelvis and the ureter.
Suprapubic catheterization
The placement of a catheter into the bladder through a small incision made in the abdominal wall just above the pubic bone
Uremia
A toxic condition resulting from renal failure in which urea and other waste products are retained in the blood, also known as uremic poisoning. Ur means urine, -emia means blood condition
Ureterectasis
The distention (swelling) of a ureter due to a hydroureter or congenital abnormalities. Ureter means ureter, -ecstasis means enlargement
Ureterolith
A stone located anywhere along the ureter. Ureter/o means ureter, -lith means stone
Ureterorrhagia
The discharge of blood from a ureter. Ureter/o means ureter, -rrhagia means bleeding
Ureterorrhaphy
The surgical suturing of a ureter. Ureter/o means ureter, -rrhaphy means surgical suturing
Urethritis
Inflammation of the urethra. Urethr means urethra, -itis means inflammation
Urethroplasty
The surgical repair of damage or a defect in the walls of the urethra. Urethr/o means urethra, -plasty means surgical repair
Urethrorrhagia
Bleeding from the urethra. Urethr/o means urethra, -rrhagia means bleeding
Urethrostenosis
Narrowing of the urethra. Also called urethral stricture. Urethr/o means ureter, -stenosis means tightening or narrowing. This condition occurs almost exclusively in men and is caused by scarring from infection or injury
Urethrotomy
A surgical incision into the urethra for relief or stricture. Urethr means urethra, -otomy means surgical incision
Urinary catheterization
The insertion of a tube into the bladder in order to procure a sterile specimen for diagnostic purposes, to drain urine from the bladder when the patient is unable to urinate, or to place medication into the bladder
Vesicovaginal fistula
An abnormal opening between the bladder and the vagina that allows constant involuntary flow of urine from the bladder into the vagina. Vagin means vagina, -al means pertaining to. May be caused by prolonged labor during childbirth or surgery such as a hysterectomy
Voiding cystourethrography
A diagnostic procedure in which a fluoroscope is used to examine the flow of urine from the bladder and through the urethra. Cyst/o means bladder, urethr/o means urethra, -graphy means the process of producing a picture or record. This procedure is often performed after cystography
Wilms tumor
A rare type of malignant tumor of the kidney that occurs in young children. There is a high cure rate for this condition when treated promptly
Functions of the urinary system
- Maintain homeostasis
- Maintaining proper balance of water, salts, and acids in the body by filtering the blood as it flows through the kidneys
- Constantly filtering the blood to remove urea, creatinine, uric acid, and other waste materials from the bloodstream
- Converting these waste products and excess fluids into urine in the kidneys and excreting them from the body via the urinary bladder
Homeostasis
Process through which the body maintains a constant internal environment. Home/o means constant, -stasis means control
Urea
Major waste product of protein metabolism
Creatinine
Waste product of muscle metabolism
Urinary system
Also referred to as the urinary tract. Consists of two kidneys, two ureters, one bladder, and one urethra. The adrenal glands, which are part of the endocrine system, are located on the top of the kidneys
Prostate gland
Part of the male reproductive system, surrounds the urethra
Genitourinary tract
Two body systems are sometimes referred to together where the Urinary tract is located in close proximity to the reproductive organs
Kidneys
Constantly filter the blood to remove waste products and excess water. These are excreted as urine, which is 95% water and 5% urea and other body wastes. About 200 quarts of blood are processed every day, producing an average of 2 quarts of urine. The kidneys also help the body maintain the proper level of fluid, produce hormones that control blood pressure and make red blood cells, and activate vitamin D to maintain healthy bones. The two bean-shaped kidneys are located in the retroperitoneal space, with one on each side of the vertebral column below the diaphragm and the lower edge of the rib cage
Renal
Pertaining to the kidneys. Ren means kidney (s), -al means pertaining to
Retroperitoneal
Behind the peritoneum, which is the membrane that lines the abdominal cavity
Renal cortex
Outer region of the kidney. This layer of tissue contains more than one million microscopic units called nephrons
Cortex
Outer portion of an organ