structure of urinary system

• Label

  A) vena cava

  B) renal vein

  C) bladder

  D) urethra

  E) ureter

  F) kidney

  G) renal artery

  H) aorta

  
• label

  A) Renal artery

  B) Renal vein

  C) ureter

  D) pelvis

  E) medulla

  F) cortex

  
• Impurities are excreted in urine
• Main organ of the urinary system is the kidney
• Urinary system

  Bodily system that removes impurities and waste products from blood
• Kidney contains over a million small units called nephrons
• Kidney structure

  • Inner part called the medulla, outer part called the cortex
  • Ureter carries from kidneys to the bladder
  • Kidney is supplied by the renal artery and a renal vein takes blood away
  • Each kidney contains millions of kidney tubules or nephrons made up of a glomerulus, a region for selective reabsorption, and a kidney tubule for water and salt regulation
• We have two kidneys, one on the left and one on the right, located in the lower back (lumbar) region
• Route that blood takes to be purified

  1. Blood containing impurities travels in the renal artery to the kidneys
  2. The kidneys regulate the levels of salts, ions and urea in the blood - Any excess is sent to the ureter for excretion and eventually the bladder
  3. The purified blood returns to the circulation by way of the renal vein