Download presentation
Presentation is loading. Please wait.
1
Chapter 3 – Human Body Systems
Lesson 5 – The Excretory System © Brent Coley |
2
What does the excretory system do?
It gets rid of wastes: solid waste from digestion (through the large intestine) carbon dioxide from cells (through the lungs)
3
What does the excretory system do?
It gets rid of wastes: liquid waste from cells (through the kidneys, which filter wastes out of the blood and then produce urine) sweat (through the skin)
4
How does your body filter blood?
Blood passes through the kidneys 60 times a day. The kidneys remove substances the body no longer needs and returns substances it does need. Nephron – part of the kidney where wastes are separated from useful materials
5
What happens if the kidneys stop working?
Wastes can build up to dangerous levels. People with this problem need dialysis, a treatment where a machine does the job of the kidneys.
6
How does your body get rid of liquid wastes?
Through the urinary system: Urine is released from the body. Through the skin: Sweat is released through tiny openings in the skin called pores.
7
All images courtesy of Microsoft Office Online.
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.