3.4.B Managing Materials: The Respiratory and Excretory Systems

Front

What happens to the space in your lungs when you inhale?

Back

Your lungs take up more space.

Front

Which organ is responsible for producing urea?

Back

Liver

Front

What is the name of the small flap of tissue that covers the air passage when swallowing?

Back

Epiglottis

Front

What is the function of the diaphragm in the respiratory system?

Back

The diaphragm helps in breathing by contracting and expanding the lungs.

Front

What carries urine from the bladder to the outside of the body?

Back

Urethra

Front

What are the main organs of the respiratory system?

Back

Lungs, trachea, bronchi, and diaphragm.

Front

What is the role of the kidneys in the excretory system?

Back

The kidneys filter blood to produce urine, removing waste and excess substances.

Front

What is the function of the alveoli in the lungs?

Back

Alveoli are tiny air sacs where gas exchange occurs (oxygen and carbon dioxide).

Front

What is the trachea commonly known as?

Back

Windpipe.

Front

What are bronchi?

Back

Bronchi are the main passageways that branch from the trachea into each lung.