1. Excretory System

2. Function
Removes wastes from the body

3. Structures Involves 4 body systems
Digestive System- large intestine removes solid wastes
Respiratory System- lungs(alveoli) removes gaseous wastes

4. Integumentary System- sweat glands remove liquid wastes
Urinary System- kidneys remove liquid wastes

5. Urinary System

6. Function Filters waste material out of the blood
Regulates blood pressure and levels of water, salts, and minerals in the body

7. Structures
kidneys- two organs found on either side of the spine which contain nephrons- tiny filtering structures that clean wastes (urea, salts, water) from blood

8. ureters- tubes that connect the kidneys to the bladder
bladder- muscular sac that holds urine
urethra- tube that connects bladder to outside the body