Digestion Respiration Circulation

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide 
• to carry oxygen to the body
• to break down food and absorb nutrients

What are the other functions of the respiratory system?

• breathing, speaking
• to carry oxygen to the body
• to break down food and absorb nutrients

The two main big branches from the trachea (one to each lung)

• bronchi
• alveoli
• bronchioles

The air sacs at the end of bronchioles where gas exchange happens

• bronchi
• bronchioles
• alveoli

The larynx is also known as the...

• Voice box
• Passage to the lungs
• Airway

Diaphragm

• Muscle beneath the lungs that moves gases in and out  of the body
• Muscle to break down food
• Filters blood

Tags

NGSS.MS-LS1-3

Trachea

• where air enters the body
• voice box
• air tube that connects the larynx with the bronchi

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

Tags

NGSS.MS-LS1-3

What are the main organs of the respiratory system?

• muscles
• lungs
• nose and mouth
• bronchi

Which system works closely with the respiratory system?

• skeletal system
• circulatory system
• excretory system
• digestive system