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What are the main functions of the excretory system?

• deliver oxygen to the body

• deliver nutrients to the body

• remove water and waste from the body

• remove disease from the body

What is organ is #1?

• Kidney

• Stomach

• Bladder

• Heart

What organ is #3?

• Kidney

• Stomach

• Bladder

• Heart

How many kidneys do you have?

• 1
• 3
• 5
• 2

True or False:

Kidneys filter waste from blood.

• True

• False

Which of the following is NOT part of your excretory system?

• Heart

• Lungs

• Kidneys

• Skin

Blood is cleaned by which organs?

• Lungs

• Ribs

• Kidneys

• Intestines

Why is your skin part of the excretory system?

• Sweating gets rid of salt and water

• Exhaling releases carbon dioxide

• Sweating gets rid of carbon dioxide

• The large intestine releases feces

Which of the following is NOT filtered out of the blood in the kidneys?

• Blood cells

• Amino acids

• Urea

• Glucose

What organ remove waste gases?

• Lungs

• Large intestine

• Bladder

• Kidneys