Lung

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• to bring oxygen to the body

• to break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

This is a tube about 12cm long with c-shaped rings of cartilage to keep it open

• Nasal cavity
• Trachea
• Mouth Cavity
• Pharynx

Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide

• Pharynx
• Diaphragm
• Alveoli
• Lungs

Muscular structure that helps to expand and contract the lungs, forcing air in and out

• Pharynx
• Nasal cavity
• Alveoli
• Diaphragm

Passage way that moistens the air and has hairs to trap dust and particles

• Nasal cavity
• Bronchi
• Mouth cavity
• Larynx

Name the organ label # 2 . 

• alveoli 
• bronchi 
• trachea 
• lungs 

Alveoli increase the surface area in the lungs to allow...

• More nutrients to be absorbed
• You to breathe faster
• You to breathe slower
• More O2 and CO2 to exchange

Membrane layer which covers the lungs

• Visceral pleura
• Alveolar Ducts
• Alveoli
• Bronchi

Name the structure labeled 8 

• lungs 
• trachea 
• diaphragm 
• alveoli 

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

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

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5