Grade 8 Respiratory system

What letter points to the lung?

• A

• B

• C

• D

What letter points to the trachea?

• C

• B

• E

• D

What letter points to the Alveoli?

• C

• D

• E

• F

What letter points to the Bronchi?

• C

• D

• E

• F

What are the functions of the respiratory system?

• Move oxygen from the outside environment into the body. Removing carbon dioxide and water from the body.

• Carries needed substances to cells. Carries waste away from cells.

• Breaks down food into molecules that the body can use. Eliminate waste from the body.

• Helps the body move. Helps with posture and flexibility.

What is the function of the lungs?

• It is organs where gas exchange takes place.

• It is the organs where blood is filtered.

• It is the organs where blood is pumped around the body.

• It is the organ where food is broken down into molecules that the body can use.

What do cili and mucus do in the breathing passages?

• They line the breathing passages so they can trap things that don't belong in the body.

• They help gas exchange to occur in the lungs.

• They help break down food into molecules the body can use.

• They help carry needed substances to the cells in the body.

What is the pathway that air follows throughout the body?

• Nose-> Trachea -> Bronchi -> Pharynx -> Lungs -> Alveoli

• Nose -> Bronchi -> Pharynx -> Trachea -> Lungs -> Alveoli

• Nose -> Pharynx -> Trachea -> Alveoli -> Branchi -> Lungs

• Nose -> Pharynx -> Trachea -> Bronchi -> Lungs -> Alveoli

What are the gases that are exchanged in the lungs?

• Nitrogen and Oxygen

• Water and Oxygen

• Oxygen and Carbon Dioxide

• Carbon Dioxide and Water

What is another name for the windpipe?

• Lungs
• Trachea
• Larynx
• Esophagus