Chapter 12.2 The Excretory System

What is the main function of the excretory system?

• to collect and remove wastes from the body
• to strengthen skeletal muscles
• to protect the nervous system
• to bring oxygen to body cells

Which organ of the excretory system stores urine until the body is ready to eliminate it?

• ureters
• urethra
• urinary bladder
• urea

Tiny filtering structures where urine is produced in the kidneys are called

• ureters.
• alveoli.
• nephrons.
• bronchi.

Using the picture, what is the structure of A?

• ureter
• kidney
• urinary bladder
• urethra

Using the picture, what is the function of structure B?

• Carries urine away from the kidneys
• Stores urine
• Eliminates urea, excess water, and some other materials
• Carries urine away from body and eliminates it

The tube that carries urine from the kidney into the bladder is called the:

• Ureter
• Urethra
• Proximal Tubule
• Collecting Duct

How many kidneys do you have?

• 1
• 3
• 5
• 2

tube from the bladder to the outside of the body

• urethra
• ureter
• large intestine
• I.V

Where does the first filtration process occur in the image on the nephron?

• A

• B

• C

• D

which part of the brain works with the urinary system to maintain homeostasis?

• cerebellum

• cerebrum

• hypothalamus

• medulla