Saturday, January 4, 2014

Excretory System and Urinary system includes

Excretory System 

Kidneys are the excretory organ of our body. These are the major component of urinary system 

Urinary system includes                                          

  • The paired kidneys lie on either side of the vertebral column below the diaphragm and live. Each adult kidney weighs about 160 g and is about 11 cm long and 5 to 7 cm wide. Kidney is formation of urine. 
  • Ureters transport of urine from kidneys to urinary bladder  
  • Urinary bladder…reservoir of urine  
  • Urethra...passage of urine from urinary bladder to outside (In females, the urethra is 4 cm (1.5  in) long In males, the urethra is about 20 cm (8 in) longEach kidney contains about one million Nephrones which are the structural & functional unit of kidneys.)