Urinary System Flashcards
Functions of the kidney (6)
1) Removal of waste and water
2) Maintains water balance
3) Maintains salt balance
4) Helps control blood pressure
5) Maintains acid-base balance
6) Regulate red blood cell production
Organs of the Urinary System (4)
1) Kidneys
2) Ureters
3) Urinary bladder
4) Urethra
Organs of the Urinary System - Kidneys
1) Cortex
2) Medulla
3) Renal Pelvis
Organs of the Urinary System - Kidneys - Cortex
The outer part of the kidney
Organs of the Urinary System - Medulla
The inner region of the kidney
Organs of the Urinary System - Renal Pelvis
The hollow space in the centre of the kidney where the urine collects
Organs of the Urinary System - Ureters (1)
Muscular tubes move urine from the kidney to bladder
Organs of the Urinary System - Urinary bladder
A sac which stores urine (600ml -1L)
Organs of the Urinary System - Urethra (2)
1) Carries urine from bladder to the outside
2) Two sphincters control urination
3) Women have shorter Urethra - prone to infections
Nephrons (3)
1) Functional units of the kidneys
2) 1 million nephrons per kidney
3) Filters 180 L of fluid from the blood daily, returning most of it minus the waste
Basic Renal Process (3)
1) Glomerular filtrations
2) Tubular reabsorption
3) Tubular secretion
Basic Renal Process - Glomerular Filtration
Fluid into tubule
Basic Renal Process - Tubular reabsorption
Tubular reabsorption
Basic Renal Process - Tubular secretion
From blood to tubule
Descripe the Renal Process in 3-4 sentences
1) Glomerular filtration: Nondiscriminative filtration of a protein-free plasma from the glamorous into Bowmans capsule
2) Tubular reabsorption - Selective movement of filtered substances from the tubular lumen into the peritubular capillaries
3) Selective movement of on filtered substances from the pertibular capillaries into the tubular lumen
