Respiratory system

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi
• lungs
• oxygen
• alveoli

Tags

NGSS.HS-LS2-3

Flap of tissue that covers the opening to the windpipe during swallowing

• Pharynx

• Trachea

• Epiglottis

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

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 

The left lung has three lobes and the right lung has two. 

• True
• False

The drawing in of breath; inhalation.

• Inspiration

• Expiration

Breathing out; exhalation of breath.

• Inspiration

• Expiration

What is the site of gas exchange?

• alveoli

• nose

• lung

• bronchi

The process of diffusing oxygen from the blood, into the interstitial fluid and into the cells.

• inspiration

• expiration

• internal respiration

• external respiration

The process of exchanging oxygen and carbon dioxide in the lungs.

• inspiration

• expiration

• internal respiration

• external respiration