The Urinary System (Excretory System) Flashcards
Organs of the Urinary System (4)
Kidneys
Ureters
Urinary Bladder
Urethra
Kidneys
def?
Form urine- wastes, water, salts
Ureters
def?
Carries urine from kidneys to bladder
Urinary Bladder
def?
Collects & stores urine
Urethra
def?
Expels urine out of body
Functions of Urinary System
1) Regulatory- regulate mainly things in blood
2) Hormone Production
3) Waste Excretion
Regulatory Functions of Urinary System (5)
what is it completed by?
completed by the KIDNEYS
- blood volume
- blood pressure
- blood glucose
- blood ionic composition
- blood pH
-blood volume
absorbing or eliminating water in urine
-blood pressure
secreting renin (enzymes) increase/decrease BP
-blood glucose
synthesize new glucose molecules and release into blood
can add more glucose if insulin isn’t working
-blood ionic composition
regulate levels of Na+, K+, Cl-,HPO4^2-
-blood pH
excrete H+ into urine and conserve HCO3- (buffer)
Production of Hormones
which 2?
Calcitriol (calcium)
Erythropoietin (erythrocytes)
Calcitriol
hormone produced by urinary system
active form of vitamin D
regulates calcium homeostasis
Erythropoietin
hormone produced by urinary system
stimulate production of RBC’s
