Kidneys | Nephrology and Genitourinary Flashcards
cali/o, calic/o
calyx
cyst/o
urinary bladder
glomerul/o
glomerulus
meat/o
meatus
nephr/o
kidney
pyel/o
renal pelvis
ren/o
kidney
trigon/o
trigone (region of the bladder)
ureter/o
ureter
urethr/o
urethra
vesic/o
urinary bladder
albumin/o
albumin
azot/o
nitrogen
bacteri/o
bacteria
dips/o
thirsty
kal/o
potassium
ket/o, keton/o
ketone bodies (ketoacids and acetone)
lith/o
stone
natr/o
sodium
noct/o
night
olig/o
scanty
-poietin
substance that forms
py/o
pus
-tripsy
crushing
ur/o
urine (urea)
urin/o
urine
-uria
urination; urine condition
Involuntary discharge of urine
enuresis
Frequent urination at night
nocturia
Examination of urine to determine the presence of abnormal elements that may indicate various pathologic conditions
urinalysis
Antidiuretic hormone (ADH) is not secreted, or there is a resisntance of the kidney to ADH
diabetes insipidus (DI)
Insulin is not secreted adequately or tissues are resistant to its effects
diabetes mellitus (DM)
Measurement of urea levels in blood
blood urea nitrogen (BUN)
Measurement of the rate at which creatinine is cleared from the blood by the kidney
creatinine clearance
X-ray images obtained using CT show multiple cross sectional and other views of the kidney
CT urography
X-ray examination (without contrast) of the kidneys, ureters and bladder
kidneys, ureters and bladder (KUB)
X-ray examination with contrast of the blood vessels of the kidney
renal angiography
X-ray image of the renal pelvis and ureters after injection of contrast through a urinary catheter into the ureters from the bladder
retrograde pyelogram (RP)
X-ray image (with contrast) of the urinary bladder and urethra obtained while the patient is voiding
voiding cystouretrhogram (VCUG)
Imaging of urinary tract structures using high-frequency sound waves
ultrasonography
Image of the kidney obtained after injecting a radioactive substance (radioisotope) into the bloodstream
radioisotope scan
Changing magnetic field produces images of the kidney and surrounding structures in three planes of the body
MRI urography
Direct visualization of the urethra and urinary bladder with an endoscope (cystoscope)
cystoscopy
Process of separating nitrogenous waste materials from the blood
dialysis
Uses an artificial kidney machine that receives waste-filled blood from the patient’s bloodstream and returns dialyzed blood to the patient’s body
hemodialysis (HD)
Uses a catheter to introduce fluid into the peritoneal cavity
peritoneal dialysis (PD)
Dilation of narrowed areas in renal arteries
renal angioplasty
Removal of kidney tissue for microscopic examination
renal biopsy
Surgical transfer of a kidney from a donor to a recipient
renal transplantation
Passage of a flexible, tubular intrument through the urethra into the urinary bladder
urinary catheterization
urinary tract stones are crushed
lithotripsy
ESWL
extracorporeal shock wave lithotripsy
What are the functions of the urinary system?
- removes waste from the bloodstream and excretes through urine2. regulates pH of body fluids3. regulates fluid and electrolyte balance4. stimulates the production of RBCs5. Controls blood pressure
Name the organs of the urinary system.
bladderkidneysurethraureters
Kidneys are protected by the ___, ___, and ___
abdomen, back muscles, and fat
Kidneys are surrounded by what 3 layers of tissue?
- fibrous capsule (inner layer)2. perirenal fat capsule (middle layer)3. renal fascia (outer layer)
What are the 3 regions of the kidneys?
- renal pelvis (inner region)2. renal medulla (middle region)- renal pyramids (triangular sections3. renal cortex
What does the following process describe: urine drains from the tip of renal pyramids > down to minor calices > major calices > renal pelvis > ureter
Pathway of urine
There are about _____ nephrons in each kidney
1 million
Name the parts of a nephron.
- glomerular (Bowman) capsure2. renal tubule
Name the three sections of a renal tubule.
- proximal (convoluted) tubule2. loop of Henle3. distal (convoluted) tubule
What processes are involved in urine formation?
- glomerular filtration2. tubular reabsorption
Urination can also be called ____ or ____
micturition or voiding
There are ____ receptors in the bladder wall that triggers the reflex for urinating
stretch receptors
The ____ sphincter in the bladder works involuntarily while the ____ sphincter works voluntarily (how we hold urine in)
internal and external
What other systems work with the urinary system?
circulatory system and endocrine system (see Google drive notes)
The urinary system consists of which 6 organs?
two kidneys, two ureters, urinary bladder, urethra
The urinary system ____ and ____ urine, which contains metabolic waste products.
forms and eliminates
What are the organs of excretion?
Kidneys
What are the other functions of kidneys?
- regulates body fluida. compositionb. volumec. pH2. maintains the state of internal balance known as homeostasis
Which two substances does the kidney produce?
erythropoietin (EPO) and renin
What system do erythropoietin and renin act on?
circulatory system
Hormone that stimulates the production of red blood cells in the bone marrow
erythropoietin (EPO)
Enzyme that functionsto raise blood pressure and activates angiotensin in the blood
renin
Renin activates a blood component called ____ which causes constriction of the blood vessels.
angiotensin
ACE inhibitors
angiotensin-converting enzyme inhibitors
Lower blood pressure by interfering with the production of angiotensin
ACE inhibitors
The kidneys are located behind the ____ in the ____ region.
peritoneum in the lumbar region
An ____ rests on top of each kidney.
adrenal gland
Each kidney is encased in a capsule of _____ overlaid with fat.
fibrous connective tissue
An outermost layer of ____ tissue supports the kidney and anchors it to the body wall
connective
The outer region of the kidney
renal cortex
The inner region of the kidney; contains portions of thenephrons and tubules that transport urine toward the renalpelvis
renal medulla
The medulla is divided into triangular sections each called a _____
pyramid
The pyramids have a lined appearance because they’re made up of the loops and collecting tubules of the ___
nephrons
The functional units of the kidney
nephrons
Each collecting tubule empties into a urine-collecting area called a _____
calyx
Smaller minor calyces merge to form a _____
major calyx
The major calyces unite to form the _____
renal pelvis
The upper funnel shaped portion of the ureter that receives urine fromthe kidney
renal pelvis
Microscopic structures; a single tubule coiled and folded into various shapes
nephrons
Cup-shaped capsule at the beginning of the nephron’s tubule
Bowman (glomerular) capsule
Part of the blood-filtering device of the nephron
Bowman (glomerular) capsule
After the bowman capsule, the tubule folds into the ___
proximal convoluted tubule
The proximal convoluted tubule straightens out to form the ____
loop of Henle
The loop of Henle coils again into the _____
distal convoluted tubule
The distal convoluted tubule finally straightens out to form a _____
collecting tubule
Blood enters the kidney through a ____
renal artery
A short branch of the abdominal aorta
renal artery
The renal artery subdivides into smaller vessels as it branches throughout the kidney tissue until blood is brought into the ____
Bowman’s capsule (glomerular)
A cluster of capillaries within the Bowman’s capsule
glomerulus
Blood leaves the kidney by a series of vessels that finally merge to form the _____
renal vein
The renal vein empties into the ______
inferior vena cava
____ forces materials through the glomerular wall and through the wall of the glomerular capsule
blood pressure
The fluid that enters the nephron
glomerular filtrate
Glomerular filtrate consists of ____, _____, _____, ____, and ____
water, electrolytes, soluble waste, nutrients and toxins
The main waste material
urea
Urea is the _____-containing byproduct of ______
nitrogen, protein metabolism