Unit 4. Respiration & excretion

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• o break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

What are the main organs of the respiratory system that allow us to breathe and for gas exchange to happen?

• diapragm

• lungs

• trachea

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi
• lungs
• oxygen
• alveoli

Name the organ label # 6. 

• alveoli 
• bronchi 
• trachea 
• lungs 

We breathe in carbon dioxide and breathe out oxygen

• True

• False

Tags

NGSS.MS-LS1-2

NUMBER 2:

• Pharynx

• Bronchi

• Alveoli

• Lungs

What does the Larynx hold ?

• The larynx holds the whole respitory system. 
• The larynx holds the trachea. 
• The larynx holds the vocal chords. 
• The larynx hold the wind pipe. 

#5 is the

• bronchi

• bronchiole

• windpipe

• voicebox

#5 is the

• bronchi

• bronchiole

• windpipe

• voicebox

#4 is the

• bronchi

• bronchiole

• throat

• windpipe