Respiratory System Introduction

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 are the main organs of gas exchange in the respiratory system?

• diapragm
• lungs
• trachea
• bronchi

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

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

Tags

NGSS.MS-LS1-3

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

• bronchi
• lungs
• oxygen
• alveoli

Tags

NGSS.MS-LS1-3

The nasal cavity, larynx, trachea, and diaphragm are organs of the

• respiratory system
• nervous system
• digestive system
• excretory system

Gas exchange occurs in the _____________ of the lungs.

• villi
• nephrons
• alveoli
• mitochondria

The diagram shows the process of gas exchange in the alveoli of the

• trachea
• larynx
• nasal cavity
• lungs

Which structure represents the trachea, also known as the "windpipe?"

• 1

• 3

• 5

• 7

Which structure represents the diaphragm muscle that helps control our breathing?

• 4

• 6

• 8

• 10

In the lungs, oxygen and carbon dioxide are exchanged between the alveoli and the capillaries by the process of

• osmosis
• diffusion
• active transport
• respiration