Unit 9: Urinary System (Ch. 9)
Urinary System at a Glance
Functions of Urinary System
_________________ stable internal
environment
_____________________ waste products
_________________ water and electrolyte
levels
Maintain correct _____
Organs of Urinary System
Two _____________
Two ______________
One urinary ______________
One _____________
Urinary System Combining Forms
azot/o
nitrogenous waste
bacteri/o
bacteria
cyst/o
bladder
glomerul/o
glomerulus
glycos/o
sugar, glucose
keton/o
ketones
lith/o
stone
meat/o
meatus
nephr/o
kidney
noct/i
night
olig/o
scanty
pyel/o
renal pelvis
ren/o
kidney
ur/o
urine
ureter/o
ureter
urethr/o
urethra
urin/o
urine
vesic/o
bladder
Urinary System Suffixes
-lith
stone
-lithiasis
condition of stones
-ptosis
drooping
-tripsy
surgical crushing
-uria
condition of the urine
Anatomy and Physiology
Also called _____________________________
Consists of
Two kidneys
Two ureters
One urinary bladder
One urethra
Function
Main function is to __________ and __________ waste
products from ______________
_____________________ produce waste
Blood becomes ____________ if waste builds up
Waste materials are called _______________
Urine is then _____________ from body
Homeostasis
Responsible for ________________
Maintain proper _______________ of ________
and ________________ in body
Regulate levels of electrolytes
S_______________
P_________________
C_________________
Bi_______________
Maintain ____
Waste Removal
Waste is removed through system of _______________
and ______________
Called the nephron
More than 1 __________ make up each
__________
Produce ____________
Urine drains from kidney through ____________ to
______________, into ____________, and then out of
body
Kidneys
Located behind _______________
Retroperitoneal
Concave area on edge of center called ______________
Renal _____________ enters
Renal _____________ leaves
Ureter ______________
Internal Structure of Kidneys
Cortex
________________
Medulla
___________ portion
Pyramids
____________ shaped structures in
___________
Papilla
Tip of each renal ______________
Calyx
Small _________ area that ___________ urine
from each papilla
Renal pelvis
Large __________ area that receives urine from
each _________
Empties into ___________
Nephron
____________ unit of kidney
Microscopic
More than 1 million nephrons in each ____________
Consists of
1
Renal _______________
Renal _______________
Renal Corpuscle
Two parts:
__________________
___________________ or Bowman’s capsule
______________ flows through glomerulus
Substances are filtered from ____________ and enter
______________ capsule
Renal Tubules
Four sections:
_______________________________ tubule
__________________________ of Henle
____________________________ tubule
____________________________ tubule
_________ flows through renal tubules to complete
urine production process
3 Stages of Urine Production
Urine is produced as __________ moves through renal
tubules
Three stages:
Filtration
Reabsorption
Secretion
_________________
Between _________________ and _____________
capsule
Filtrate is produced
_____________
______________
_______________
_______________
Filtrate enters renal __________________
Reabsorption
As filtrate moves through renal tubules
Water & desirable molecules are
_____________
Returned to blood in ________________
capillaries
Waste & undesirable molecules
________________ in renal tubules
Secretion
As filtrate moves through renal tubules
________________ waste products removed
from blood in peritubular capillaries
Added to filtrate in renal tubules
Ureters
Urine drains from _______________ into ureters
Extend from _________________ to urinary
_____________
Lined with mucous membranes
Urinary Bladder
Elastic ____________ sac
____________ muscle tissue
Lined with mucous membrane
Folded into ______________
Lies in ___________ of _____________
Behind pubic ______________
Receives urine from _____________
Stores urine
Holds ____________ mL of urine
Excretes through ______________
___________________ muscle action causes:
Bladder to ____________
____________ sphincter to relax
______________- muscles control ___________
sphincter
Urethra
_____________ canal lined with mucous membrane
1½ inches long in _____________
8 inches long in _____________Carries urine from _____________to ___________ of
body
External opening is called urinary ________________
Releasing urine from body is called
M____________________
V___________________U____________________Urine
Normally _____________ colored to clear
_______% water
Contains:
Excess ______________
Excess __________________
________________
Nitrogen _____________Normal 24-hour output ___________ to __________
mL
Acidic, specific gravity varies
1:001 to 1:030
Word Building
Urinary System Vocabulary
Kidney Pathology
Kidney Stone Video
Kidney Pathology
Renal Failure Video
Urinary Bladder Pathology
Clinical Laboratory Tests
Diagnostic Imaging
Endoscopic Procedures
Medical Treatments
Surgical Treatments
Urinary System Pharmacology
Urinary System Abbreviations
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