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Question

Draw the human excretory system and label its parts- aorta, vena cava, urinary bladder, urethra.


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Solution

Excretory System:

  1. The excretory system is responsible for removing metabolic wastes from the body.
  2. It also helps to eliminate excess water in the body.
  3. Humans' main excretory organ is the bean-shaped kidney.

Structure of kidney:

  1. The human excretory system consists of a pair of kidneys.
  2. The kidneys are a pair of bean-shaped organs.
  3. It is positioned on each side of the abdominal cavity's posterior section.
  4. Nephrons are the functional unit of the kidney.
  5. Urine is transported from the kidneys to the urinary bladder through ureters.
  6. The urinary bladder is placed in the pelvic cavity.
  7. It serves as a reservoir for urine.
  8. The urethra is a canal that runs from the bladder's neck to the outside via an external urethral opening.
  9. Aorta carries blood from the heart to the kidney for purification.
  10. Renal veins or vena cava carry blood from the kidney to the heart.


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