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Human Excretory System Notes PDF: The human excretory system is an important part of the body that is in responsible for maintaining the internal balance of different chemicals as well as eliminating waste products.

This system plays an essential role in keeping the body healthy and working properly. You can download the complete notes of this biology topics in pdf format.

Human Excretory System Notes PDF

PDF NameHuman Excretory System Notes PDF
No. of Pages26
PDF Size1 MB

Human Excretory System Notes PDF Summary

Human Excretory System Notes

The human excretory system is a complicated and necessary mechanism for overall wellness. Understanding the structure and functioning of the body is critical for understanding how it controls waste and regulates its interior environment.

More study and research can offer a better understanding of the complexities of this crucial system.

Organs of the Excretory System:

  1. Kidneys: The kidneys are the primary organs of the excretory system. They filter blood and remove waste products and excess substances to form urine. Each person has two kidneys, and they are located in the upper abdominal cavity.
  2. Ureters: Ureters are muscular tubes that transport urine from the kidneys to the bladder. They ensure a one-way flow of urine to prevent backflow.
  3. Bladder: The bladder is a hollow, muscular organ that stores urine until it is ready to be eliminated from the body. It can expand to accommodate varying amounts of urine.
  4. Urethra: The urethra is the tube that carries urine from the bladder to the outside of the body. In males, it also serves as the passageway for semen during ejaculation.

Importance of the Excretory System:

  • Maintains proper water and electrolyte balance.
  • Removes metabolic waste products from the body.
  • Regulates blood pressure by controlling the volume of blood.
  • Helps in the elimination of excess substances, such as drugs and toxins.
  • Plays a role in the production of erythropoietin, a hormone responsible for red blood cell production.

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