Respiratory

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

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

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

• bronchi
• lungs
• oxygen
• alveoli

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

The two main branches from the trachea (one to each lung)

• bronchi
• alveoli
• capillaries
• bronchioles

What does the Larynx hold ?

• The larynx holds the whole sub system 
• The larynx is part of the plant cells. 
• The larynx holds the vocal chords. 
• The larynx is part of animal tissues. 

The main ORGAN responsible for breathing is:

• the Brain

• the Lungs

• the Liver

• the Kidneys

What is another name for the windpipe?

• Lungs
• Trachea
• Larynx
• Esophagus

It is the network of organs and tissues that help you breathe.

• digestive system

• nervous system

• circulatory system

• respiratory system

Openings that pull air from outside your body into your respiratory system.

• sinuses

• mouth and nose

• bronchial tubes

• lungs

Passage connecting your throat and lungs.

• pharynx

• bronchial tubes

• diaphragm

• trachea