Excretory System

LT #1: What is the main function of the excretory system?

• To protect the nervous system

• To collect and remove wastes from the body

• To bring oxygen to the body cells

• To strengthen skeletal muscles

LT #1: All of the following are excretory organs EXCEPT:

• Skin

• Lungs

• Kidneys

• Stomach

LT #1: All of the following are considered metabolic waste EXCEPT:

• Inorganic salts

• Carbon dioxide

• Urea

• Oxygen

LT #1: Your kidneys filter all of the following substances out of your blood EXCEPT

• CO₂

• Excess water

• Urea

• Inorganic salts

LT #1: Which organ stores urine until the body is ready to eliminate it?

• Kidneys

• Bladder

• Ureters

• Urethra

LT #2: Which letter is pointing to the ureters?

• A

• B

• C

• D

LT #2: Which letter is pointing to a kidney?

• A

• B

• C

• D

LT #2: Which letter is pointing to the bladder?

• A

• B

• C

• D

LT #2: Which letter is pointing to the urethra?

• A

• B

• C

• D

LT #2: Tiny filtering structures in the kidneys where urine is produced are called:

• Ureters

• Nephrons

• Urethra

• Urea