Circulatory and Respiratory System Review

Also called the windpipe

• Larynx

• pharynx

• trachea

• alveoli

Tiny air sacs in the lungs

• alveoli

• capillaries

• trachea

• cilia

Two tubes that branch off the trachea

• larynx

• pharynx

• alveoli

• bronchi

The strong curved muscle attached below the lungs to the lower ribs

• alveoli

• diaphragm

• cilia

• epiglottis

Two saclike organs that replace carbon dioxide in your blood with oxygen

• cilia

• bronchioles

• lungs

• bronchi

Where does the exchange of oxygen and carbon dioxide take place?

• bronchi

• pharynx

• trachea

• alveoli

Breathing in is

• inhaling

• exhaling

Label the respiratory system.

e

d

c

b

a

Bronchiole

Diaphragm

Lung

Alveoli

Trachea

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

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

Tags

NGSS.MS-LS2-3

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart