MOD 4 Urology Flashcards
Urinary system
begins with the kidneys. Located in the retroperitoneal space.
retroperitoneal space
a small area behind the peritoneum of the abdominal cavity
retro- behind; backward
peritone/o- peritoneum
-al…pertaining to
alternate names
urinary tract, GU (genitourinary system), urogenital system, excretory system.
genitourinary and urogenital
two systems in close proximity and with shared structures.
flank
under the lower edge of the rib cage in the flank area of the back
hilum
an area of indentation on the medial surface of the kidney
(HY-lum)
hilar
(HY-lar)
hil/o– hilum (indentation in an organ)
-ar…pertaining to
renal artery
enters the hilum. renal vein and ureter exit there.
renal cortex
layer of tissue
renal medulla
contains triangular-shaped renal pyramids
Minor calix
each tip of the renal pyramids connect to the minor calix, an area that drains urine.
major calix
minor calices drain into a common area call the major calix
renal pelvis
major calices drain into the renal pelvils, a large funnel-shaped cavity that narrows to become the ureter
ureter
12inch tube that connects renal pelvis to the kidney to the bladder.
yoo-REE-ter
ureteral orifices
the openings into the bladder
peristalsis
propel urine into the bladder is the processs called ‘peristalsis’
peri- around
-stalsis… process of contraction
fundus
dome of the bladder
mucosa
bladder is lined with mucosa, a mucous membrane.
rugae
when bladder is empty, mucosa collapses into folds called rugae.
ROO-gee
sphincter
muscular ring that opens so that urine can flow into the urethra. opening/closing is involuntary and CANNOY be controlled consciously.
vesical
adjective form of “bladder”
vesic/o– bladder
-al– pertaining to
urethra
tube that carries urine from the bladder to the outside of the body
external urethral sphincter
muscular ring that CAN be consciously controlled to release or hold back urine.
urethral meatus
where the urethra opens to the outside of the body. (exit point of genital)
Urethra in men
7-8 inches long. in men, it’s both part of urinary and reproductive system because it transports urine AND semen.
prostate gland
spherical gland at the base of the bladder. aka “prostatic urethra”
Urethra in women
only 1-2 inches from bladder to external body. Urethral meatus is located anterior to the extrernal opening of the vagina
parenchyma
pah-RENG-kih-mah
functoinal or working area of any organ (as opposed to the organ’s structural framework). The parenchyma of the kidney is made up of the cortex and the medulla because these areas contain the nephrons.
nephron
microscopic structure, is the functional unit of the kidney and the site of urine production
nephr/o- kidney; nephron
glomerular capsule
gloh-MAIR-yoo-lar
foermerly known as “Bowman’s capsule.” First part of the nephron.
glomerulus
a network in the glomerular that contains intertwining capillaries.
waste products
- urea, (protein metabolism)
- creatinine, (from muscle contractions)
- uric acid, (from purine metabolism to construct DNA/RNA)
- drugs and products of drug metabolism.
electrolytes
chemicals that have a positive or negative charge and incolude sodium, potassium, chloride, and bicarbonate.
electr/o- electricity
-lyte… dissolved substance
filtration
pressre of the blood pushes the waste products as well as water and nutritional substances thru the capillary pores and out into the ball-shaped collecting area of the glomerular capsule.
micturition
mik-choo-RISH-un
micturi/o– make urine
-tion… a process
means “to urinate”
renin
ren/o- kidney
-in… a substance
renin is an enzyme that creates a vasoconstrictor that causes blood vessels to constrict.
glomerulonephritis
glomerulonephritis
glomerul/o- glomerulus
nephr/o- kidney
-itis– inflamattion of; infection of
kidneys becomes inflamed and urine production decreases. infection usually by strep throat.
(gloh-mair-yoo-loh-neh-FRY-tis)
hydronephrosis
hy-droh-neh-FROH-sis
hydro–water
nephro/o– kidney
-osis– abnormal condition; process
enlargement of the kidney. Due to the pressure from urine that is backed up in the ureter because of an obstructing stone or stricture.
caliectasis
caliectasis
cali/o- calix
-ectasis… condition of dilation
the calices of the kidney are enlarged.
(kay-lee-EK-tah-sis)
nephrolithiasis
nef-roh-lih-THY-ah-sis
nephro/o– kidney; nephron
lith/o– stone
-iasis– state of
calcus (kidney stone) formation in the urinary system. they are copmosed of magnesium, calcium, or uric acid crystals.
renal colic
spasm of the smooth muscle of the ureter or bladdar as the kidney stone’s jagged edges scrape the mucosa.
col/o– colon
-ic– pretaining to
nephropathy
general word for any disease of the kidney.
nephroptosis
abnormally low position of a kidney. sometimes requires surgery, but more often is mentioned as an incidental finding on an xray.
nephr/o- kidney
-ptosis… state of prolapse; drooping; falling
nephrotic syndrome
damage to the pores of the capillaries of the glomerulus. this allows large amounts of protein to leak into the urine, decreasing the amount of protein in the blood.
calcul/o-
stone
calculogenesis or lithogenesis
process of forming stones
glomerulosclerosis
gloh-mair-yoo-loh-skleh-ROH-sis
glomerul/o- glomerulus
scler/o- hard; sclera
-osis– condition; abnormal
hardening of the tiny arteries in the glomerulus
polycystic kidney disease
congenital disease characterized by systs in the kidney that eventually destroy the nephrons.
poly– many
cyst/o– bladder; fluid-filled sac;
-ic– pertaining to
congenital
congenit/o– present at birth
-al– pertaining to
Someone with a congenital disease has it since birth
pyelonephritis
py-eh-loh-neh-FRY-tis
pyel/o– renal pelvis
nephr/o– kidney; nephron
-itis– inflamation
inflammation and infection of the pelves of the kidneys. Caused by a bacterial infection of the bladder that goes up the ureters to the kidneys
Wilms’ tumor
cancer of the kidney that occurs in children and arises from fetal tissue.
nephroblastoma
nephro/o– kidney; nephron
blast/o– immature; embryonic
-oma– tumor; mass
Sam as Wilms’ tumor.
renal failure
Disease in which the kidneys decrease their urine production, and then stop producing urine.
ARF
Acute Renal Failure
A renal failure where kidneys stop producing urine. It occurs suddenly and is due to trauma, severed blood loss, or overwhelming infection.
Acute Tubular Necrosis
Necr/o- dead cells, tissue, or body
-osis– condition; abnormal condition
the sudden destruction of large numbers of nephrons and their tubules.
CRF
Chronic Renal Failure
begins with renal insufficiency, followed by gradual woresning with progressive damage to kidneys from diabetes mellitus, hypertension, or glomerulonephritis.
ESRD
End-Stage Renal Disease
The final, irreversible stage of chronic renal failure in which there is little or no remaining kidney function.
Uremia
Ur/o– urine; urinay system
-emia– condition of the BLOOD
Excessive amounts of waste product urea in the blood because of renal failure.