Urinary

• What are the overall functions of the urinary system


  -helps maintain the normal concentration water

  -regulates pH and volume

  -controls RBC production
• Kidneys


  remove substances from blood
• Ureters


  transport urine
• bladdar


  stores urine
• Urethra


  transports urine our of body
• Renal pelvis


  funnel shaped sac at superior end of ureter
• major calices


  Collect urine from renal pyramids
• minor calices


  collect urine from renal pappile
• renal sinus


  entry/exit for blood vessels, nerves and blood filtration
• renal colums


  serve to sperate renal pyramids
• renal pyramids 


  triangle shaped containing urine collecting tubules
• renal medulla


  lower 2/3 of nephron

  arranged in renal pyramids and separated by columsn
• renal cortex


  per 1/3
• urine formation begins with 


  filtration
• normal amount of filtrate


  AA, uric acid, urea, water, electrolytes
• how does sodium reabsorption affect potassium secretion


  when BP is low more sodium gets absorbed and more water