Respiratory System

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

Lung volume might vary because of

• Activity level
• All of these
• Smoking
• Asthma

When bronchial tubes are irritated and swell (causing excessive coughing)

• Bronchitis
• Lung cancer
• Asthma
• Emphysema

When alveoli in the lungs enlarge and lose their elasticity.

• Bronchitis
• Lung cancer
• Asthma
• Emphysema

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

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

• Nasal cavity
• Bronchi
• Mouth cavity
• Larynx

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

• Lungs
• Diaphragm
• Pharynx
• Larynx