1 / 5

Excretory (urinary) System

The excretory (urinary) system plays a crucial role in maintaining the body's internal balance by collecting and expelling waste produced by cells. This system includes the kidneys, ureters, urinary bladder, and urethra, responsible for eliminating urea, water, and other waste products. Nephrons filter out wastes and reabsorb essential materials like glucose. Excretion not only removes harmful substances but also contributes to homeostasis, ensuring a stable internal environment. Other organs involved in excretion include the lungs, skin, and liver.

ona
Télécharger la présentation

Excretory (urinary) System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Excretory (urinary) System Mrs. Wharton’s Science Class

  2. Functions of the Excretory System • System of the body that collects wastes produced by cells and removes the wastes from the body. • Excretion- what the removal process is called. The structures of the excretory system that eliminate urea, water, and other wastes include the kidneys, ureters, urinary bladder, and urethra

  3. Vocabulary • Kidneys- remove urea and other waste material from blood. • Urine- a watery fluid that contain urea and other wastes • Urea- a chemical that comes from the breakdown of proteins • Ureters- narrow tubes where urine flows from the kidneys • Urinary bladder- where urine is carried to ( stores urine) • Urethra- where urine flows going to the outside world

  4. Nephrons • They filter wastes. 1st- both wastes and needed material, such as glucose, are filtered out of the blood. • Then- much of the needed materials is returned to the blood, and the wastes are eliminated from the body.

  5. Homeostasis • Excretion maintains homeostasis by keeping the body’s internal environment stable and free of harmful levels of chemicals. • In addition to the kidneys, organs of excretion that maintain homeostasis include lungs, skin and liver.

More Related