The Excretory SystemBY THALIA HAWKINS

Major Function

The major function of this body system is to take contaminated blood and filter it, so your body can use the fresh blood. Then your body releases the contamination out of your body. (That’s why you use the restroom.)

Major Organs

The Major organs in this body system consists of the bladder, kidneys, aorta, renal veins, and urether.

How This System Works

Tiny filtering units in the kidney called nephrons first take water, sugar, salt, and wastes in the blood and filter the blood through tube-like structures. Then all that’s left will be blood cells and proteins. Next, capillaries that surround the tubule perform the second filtration. Most water, sugar, and salt are reabsorbed and returned to the blood. Purified blood is returned to the main circulatory system. The left over liquid, urine, is lastly trown out through the bladder.

Video Clip Representation

http://www.youtube.com/watch?v=_NO8n48AKJY

Work Cited

Info: 1. Textbook

Images: 1. http://www.studyblue.com/notes/note/n/kidneys-i/deck/1579692

2. http://www.plumbingproducts.com/howto-troubleshoot-leaking-toilets.html

3. http://www.glogster.com/cadaltn/the-excretory-system/g-6m4tme0i8e7kv7v9ie3ksa0

Video: 1. http://www.youtube.com/watch?v=_NO8n48AKJY

THE END