Understanding the Lungs

The video explains the structure and function of the lungs, which are essential respiratory organs located in the chest cavity. It describes the differences between the right and left lungs, the pathway of air through the trachea and bronchi, and the role of bronchioles and alveoli in gas exchange. The lungs are protected by the ribcage, and the video highlights the importance of these structures in the respiratory system.

What is the primary function of the lungs?

• To filter waste

• To digest food

• To help us breathe

• To pump blood

Why is the left lung smaller than the right lung?

• It has fewer bronchi

• It has fewer alveoli

• It makes room for the heart

• It has a different shape

What is another name for the trachea?

• Esophagus

• Windpipe

• Alveolus

• Bronchus

Into how many large tubes does the trachea divide?

• Three

• Two

• Four

• One

What are the smallest branches of the bronchus called?

• Bronchioles

• Alveoli

• Capillaries

• Ribcage

Approximately how many alveoli are in our lungs?

• 100 million

• 200 million

• 1 billion

• 650 million