2nd Six Weeks Review

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

Which body structure protects the lungs from outside harm?

• Cartilage
• Tiny Sacs
• The Rib Cage

The Respiratory System is the body's:

• Breathing system
• Food processing system
• Blood transporting system
• System of nerves

What is the purpose of nose hairs?

• Fight disease
• No purpose
• Keep dust/particles out of nose
• Tickle the nose so you sneeze

What gas do we exhale?

• oxygen

• helium

• carbon dioxide

• hydrogen

Where does oxygen initially enter into the body?

• nose and mouth

• eyes

• brain

• throat

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

The job of the heart is to . . .

• pump blood around the body.

• send food to the small intestines.

• break down food.

• give energy to the body.

The circulatory system works with the ___________ system to provide our body with oxygen.

• respiratory

• digestive

• muscular

• skeletal