urinary system test review medical terminology 2 parts of the kidney kidney parts of the kidneys...
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Urinary System Test Review
Medical Terminology
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Parts of the Kidneykidney
Parts of the kidneys
•Cortex
-outer protective portion•Medulla
-inner soft portion
•Hilum-a depression located in the middle of the concave side of the kidney where blood vessels, nerves, and the ureters enter and exit the kidneys cortex
medulla
hilum
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Structure and Function
• The ureter (ureter/o), carries urine (urin/o) from the kidney (ren/o, nephro/o) to the urinary bladder (cyst/o).
• A person feels the urge to urinate (-uria) when the bladder has 1 cup of urine (urin/o)
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Flow of UrineFlow of Urine
glomerulus
renal tubules
renal pelvis
renal calices
ureters The renal tubules carry urine to ducts in the renal cortex.
Renal cortexRenal capsule
Renal medullaUreter
Renal vein
Renal artery
Nephron
Filtered blood exits the kidneys via the renal vein.
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Structure and Function•Blood flows through the glomerulus at a constant rate.
•Each glomerulus is surrounded by a capsule known as Bowman’s capsule.
•Blood then passes into the renal tubules where some substances are reabsorbed and the remaining become urine.
Urine Flow
Blood Flow
Glomeruli
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Structure and Function
• There are more than 1 million nephrons in each kidney (nephr/o, ren/o).
Urine is produced by filtration of:•water•salts
•sugar•urea
•creatine•uric acid
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Terms and Meanings
• Anuria: An without-uria urination
• Anuria means without urine
• Dysuria: Dys difficult/painful-uria urine/urination
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Combining Forms and AbbreviationsCombining Forms Meaning
cali(o)
cyst(o)
glomerul(o)
meato
nephr(o)
pyel(o)
ren(o)
Calix, cup like structure
bladder
glomerulus
Meatus, opening
kidney
renal pelvis
kidney
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Combining Forms [trigon(o)]Combining Forms Meaning
trigon(o)
urin(o)
ureter(o)
urethr(o)
vesic(o)
trigone
urine
ureter
urethra
bladder
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Combining Forms [ADH]Abbreviation Meaning
ADH
A/G
AGN
ARF
ATN
BNO
BUN
antidiuretic hormone
albumin/globulin
acute glomerulonephritis
acute renal failure
acute tubular nephrosis
bladder neck obstruction
blood urea nitrogen
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Combining Forms [CAPD]Abbreviation Meaning
CAPD
Cath
Cl
CRF
cysto
ESRD
ESWL
continuous ambulatory peritoneal dialysis
catheter
chlorine
chronic renal failure
cystoscopy
end-stage renal disease
extracorporeal shock wave lithotripsy
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Combining Forms [HD]Abbreviation Meaning
HD
IVP
K+
KUB
Na+
pH
PKU
hemodialysis
intravenous pyelogram
potassium
kidney, ureter, bladder
sodium
power of hydrogen concentration
phenylketonuria
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Combining Forms [RP]Abbreviation Meaning
RP
SG
UA
UTI
VCU
retrograde pyelogram
specific gravity
urinalysis
urinary tract infection
voiding cystourethrogram
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Blood Tests
Blood Tests
•Blood Urea Nitrogen (BUN)
•Creatinine Clearance Test
The presence of high amounts of urea or creatinine in the blood shows that the kidney is not properly filtering these substances.
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Imaging TestsImaging Tests
•Cystoscopy
-tubular instrument used to examine the bladder
•Intravenous Pyelogram
-x-rays of the urinary tract after a contrast medium is injected into the bloodstream
•KUB
-x-ray of three parts of the urinary tract (kidney, ureter, and bladder)
•Renal Scan
-radioactive imaging used to diagnose kidney disorders
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Urinary Tract ProceduresUrinary Tract Procedures
Dialysis
•Hemodialysis -the process of filtering blood outside the body in an artificial kidney machine that returns the blood back to the body after filtering.
Peritoneal dialysis (pictured)-the insertion and removal of a dialysis solution into the peritoneal cavity.
Dialysis solution
Peritoneal cavity
Catheter
Solution draining out
Drained solution
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Inflammatory & Infectious Disorders
Inflammatory&
Infectious Disorders
Urinary Tract Infection Glomerulonephritis
Nephritis Nephrosis
Hydronephrosis Polycystic kidney disease
NephroblastomaCystitis
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Pathological TermsTerms Used to Describe Difficulties in Urination
anuresis
•No urinary output
dysuria
•Painful urination
enuresis
•Lack of bladder control
oliguria
•Scanty urination
polyuria
•Excessive urination
incontinence
•Involuntary discharge of urine or feces
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Surgical TermsParts of the urinary system may be surgically removed
•Nephrectomy- removal of a kidney•Ureterectomy- removal of a ureter•Cystectomy- removal of the bladder
Surgical repair procedures
•Pyeloplasty- repair of the renal pelvis•Cystoplasty- repair of the bladder•Urethroplasty- repair of the urethra
A urostomy is the creation of an artificial opening in the abdomen through which urine exits the body.
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Other Surgical ProceduresOther Surgical Procedures
Nephrolysis
•Removal of an adhesion in the kidney
Nephrolithotomy
•Removal of a kidney stone
Nephropexy
•Surgical fixation of the kidney
Nephrorrhaphy
•Suturing of a damaged kidney