CHAPTER 2 ---) 2.1 HUMAN RESPIRATORY SYSTEM

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

• bronchi
• alveoli
• capillaries
• bronchioles

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

What is the small flap of tissue called that covers the air-only passage when we swallow?

• Bronchioles
• Larynx
• Alveoli
• Epiglottis

When the diaphragm contracts...

• the volume of the thoracic cavity increases and the pressure decreases, causing air to rush into the lungs.
• the volume of the thoracic cavity decreases and the pressure increases causing air to rush out of the lungs. 

Given the following structures:
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that air would flow during inhalation. 

• 1,2,3,4
• 2,3,1,4
• 2,1,3,4
• 4,2,3,1 

When you exhale, the diaphragm

• moves upwards

• moves downwards

• flattens

• none of the above

Which is known as the voice box?

• pharynx

• larynx

• trachea

• bronchi

What is labeled F?

• bronchioles

• trachea

• bronchi

• diaphragm

What is labeled at E?

• bronchi

• trachea

• pharynx

• none of the above

Number 1 is pointing at which Respiratory organ?

• Diaphragm
• Lung
• Bronchi Tubes
• Nose