Respiratory System

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-5

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

• bronchi
• lungs
• oxygen
• alveoli

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 so we can breathe

• 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 

Which body function is made possible by the fibrous bands stretched across the larynx?

• swallowing
• breathing
• diffusion
• speech

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

• True
• False

What is the respiratory system?

• a group of tissues and organs that enable you to breathe

• your ears

• organs that remove blood from your body

• bronchi

A cavity within a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities.

• Sinus

• Nose

• Pharynx

• Larynx

The only externally visible part of the respiratory system

• Eyes

• Nose

• Pharynx

• Larynx