Respiratory system

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
• 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 

What is the site of gas exchange?

• alveoli

• nose

• lung

• bronchi

NUMBER 1:

• lungs

• pharynx

• mouth

• alveoli

Tags

NGSS.MS-LS1-3

NUMBER 2:

• Pharynx

• Bronchi

• Alveoli

• Lungs

NUMBER 6:

• Lungs

• Trachea

• Mouth

• Alveoli

When we breathe out, the ____________ leaves our lungs.

• Carbon dioxide

• Oxygen

Tags

NGSS.5-LS2-1

When we breath in the diaphragm...

• Contracts

• Relaxes