Urinary System Flashcards
What are the functions of the urinary system?
Assists to regulate blood pressure
Assists with production of red blood cells
Forms and stores urine and cleanses the blood of toxic substances
What does the urinary system consists of?
kidneys, ureters, urinary bladder, and urethra.
What is the main function of the kidneys?
to clean your blood by removing waste and extra fluids, making urine, and helping control things like blood pressure and red blood cell production
Structures like the blood vessels, ureters and nerves enter and leave the kidneys through the?
hilum
where does the kidneys lie against?
12th rib
What is the outer layer of the kidney?
renal cortex
What is the function of the renal cortex?
its the site of urine production
what is the inner region of the kidney?
renal medulla
what is the main function of the renal medulla?
its the site of urine collection
What does the renal artery do?
brings blood to the kidney
What does the smaller arteries do?
carry blood to the renal cortex, which is the outer part of the kidney
What is the filtering units of the kidney called
nephrons
what is the nephrons responsible for?
tiny filters responsible for cleaning your blood and making urine.
What does filteration do?
separates small substances like water, salts, and waste from the blood, allowing them to pass into the urine
What does Absoprtion do?
keeps the good stuff in the body by soaking it back from the urine.
What does secretion do?
throws out the extra stuff the body doesn’t need into the urine
What does renin do?
boosts blood pressure
What does Aldosterone do?
manages salt and water levels
What does ADH do?
saves water when you’re low on fluids
What does ANP do?
releases sodium and water when blood pressure is too high
What does PTH do?
controls calcium levels
What does EPO do?
makes more red blood cells when oxygen is low
Filtration of blood in the kidneys when blood in the capillaries of the _________ is filtered into ________
glomerulus, Bowman’s capsule
Which hormone affects the kidney by stimulating the reabsorption of sodium ions and excretion of potassium ions?
aldosterone
What change triggers Renin to be released?
decline in blood pressure
What part of the brain can override the micturition (urination) reflex?
the pons
The blood vessel that delivers oxygenated blood to the kidney is the
Renal Artery
What is another name for the floor of the urinary bladder?
Trigone
What are the main functions of the renal tubules?
Absorption and Secretion
What hormone system regulates glomerular filtration rate?
Renin-Angiotensin-Aldosterone system
Which is NOT a function of the Urinary System?
Storing red blood cells and platelets
What could happen if Glomerular filration rate is too low?
The kidney could reabsorb toxins
The outer region of the kidney is called
The renal cortex
The functional filtration unit of the kidney is the
Nephrons
The part of the kidney that collects urine that is then drected into the ureter is the
renal pelvis
