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

• Nasal cavity

• Trachea

• Mouth Cavity

• Pharynx

Two short tubes that carry air into the lungs

• Trachea
• Bronchioles
• Lungs
• Bronchi

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

Smaller tubes within the lungs

• Bronchioles
• Bronchi
• Lungs
• Alveoli

What is the function of the respiratory system

• Take in O2 only

• Remove CO2 only

• Take in O2 ad remove CO2

• Make sugar

This is the airway that has two pairs of vocal chords attached to it

• Lungs
• Diaphragm
• Pharynx
• Larynx

Caused by inhaling too much of smoke (cigarettes/firefighters), chemicals (vape, construction, military), dust (mining etc) or pollution:

• Bronchitis

• Lung cancer

• Asthma

• Respiratory infections

During inhalation, the diaphragm moves upward decreasing the volume of the thoracic cavity.

• True 
• False

The movement of oxygen from the alveoli to the blood and from the blood to the tissues is due to the process of...

• osmosis

• diffusion

• cytokinesis

• phagocytosis