Excretory System

The body has how many kidneys?

• 1

• 2

• 3

What are the waste products excreted through your skin when you sweat?

• germs

• viruses

• water and salts

What organ filters waste from the blood?

• kidneys

• bladder

• liver

• lungs

Urine flows from the

• bladder to the kidneys

• kidneys to the bladder

• stomach to the kidneys

Which word describes the function of the nephrons?

• tubes

• store

• filters

• collect

What is the main function of our excretory system?

• to break down food

• to create insulin

• to get rid of waste products from your cells

• to circulate your blood

Where is urine stored before it is pushed out of the body?

• bladder

• kidney

• liver

• heart

Place the events of the urinary system in order.

• 1. urine passes through the ureters

  2. urine is stored in the bladder

  3. blood enters the kidneys

  4. urine enters the urethra

• 1. blood enters the kidneys

  2. urine passes through the ureters

  3. urine is stored in the bladder

  4. urine passes through the urethra

Blood being pumped into the kidneys where it is filtered is an example of which two systems working together?

• muscular and skeletal

• excretory and circulatory

• circulatory and digestive

• excretory and digestive

True or False. The lungs excrete oxygen from the body.

• True

• False