Excretory System

Multiple Choice

What do you think the job of your excretory system is?

• To bring oxygen into your body

• To pump blood around the body

• To break down food

• To remove waste from your body

​Remember!
Maintaining homeostasis is one of the 8 characteristics of life!

Multiple Select

Which body systems are involved in the collection and elimination of waste products from the body?

• Urinary system

• Digestive system

• Respiratory system

• Nervous system

​nitrogenous = has a lot of nitrogen

​metabolic = results from metabolism
Metabolism is another one of those 8 characteristics!

Open Ended

Explain how the integumentary system (skin) contributes to the excretory process and why dogs might be attracted to human sweat.

Multiple Choice

Which 2 systems work together when your lungs release carbon dioxide as waste from your cells?

• Respiratory and Digestive

• Respiratory and Circulatory

• Excretory and Muscular

• Skeletal and Muscular

​process (verb) = handle or take care of something.

Multiple Choice

Which waste products are removed by the respiratory system?

• Undigested food and water

• Excess salt and water

• Carbon dioxide and water vapor

• Liquid wastes

​the system that makes urine(urea) (pee)

​These words that start with "ur...." can be confusing.

​excess = too much

​Urea is safer than ammonia to keep in our bodies.

Multiple Choice

What is the main function of nephrons in the kidneys?

• Filter blood and produce urine

• Digest proteins

• Absorb nutrients

• Transport oxygen

Multiple Choice

Which structure carries urine from the kidneys to the urinary bladder?

• Urethra

• Tubule

• Ureter

• Glomerulus

Multiple Choice

What organ is #3?

• Kidney

• Stomach

• Bladder

• Heart

Multiple Choice

What is the name of the structure that leads from the bladder to the outside environment?

• Ureter

• Bladder

• Urethra

• Kidney

Multiple Choice

What are the main organs involved in the human excretory system?

• Kidneys, bladder, ureters, urethra, skin, lungs

• Heart, liver, stomach, intestines

• Brain, spinal cord, nerves

• Bones, muscles, joints

Multiple Choice

In each kidney there are a million tiny filtering units responsible for cleaning the blood, what are they?

• Alveoli

• Villi

• Nephrons

• Cilia

How hydrated are you?

Multiple Choice

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

• Heart

• Lungs

• Kidneys

• Skin

Multiple Choice

Which sequence represents the correct pathway for the removal of urine from the human body?

• kidney → ureter → urinary bladder → urethra

• kidney → urethra → urinary bladder → ureter

• ureter → kidney → urinary bladder → urethra

• urethra → kidney → urinary bladder → ureter

Multiple Choice

The excretory system is responsible for moving toxic wastes, dissolved molecules, and excess heat. You would conclude that the excretory system contributes to

• circulating molecules around the body

• maintaining homeostasis in the body

• producing glucose

• gas exchange