Respiratory System

What are the two branches called that branch off from your trachea and into your lungs?

• bronchus (bronchi)

• alveoli

• lungs

• trachea

What are the smaller branches of the bronchi called?

• bronchioles

• alveoli

• ravioli

• lungs

What happens during pneumonia?

• the alveoli fill with fluid making it harder to breathe

• a blockage in the brain prevents blood from being delivered

• the heart stops beating

• the uncontrolled growth of abnormal cells in one or both lungs

What gas do plants take in that animal/humans breathe out?

• carbon dioxide

• oxygen

• nitrogen

• phosphorus

This condition occurs when the airway is narrowed due to inflammation of the bronchi. Which condition is this?

• alveoli

• asthma

• lung cancer

• emphysema

Where does oxygen initially enter into the body?

• nose and mouth

• eyes

• brain

• throat

What is the function of the diaphragm?

• the muscle that contracts and relaxes when you breathe

• the muscle that regulates your heart beat

• no function

These tiny grape-like air sacs is where the gas exchange of oxygen and carbon dioxide happen in the lungs. What is it?

• alveoli

• lungs

• ravioli

• bronchioles

What do humans need to breathe in from the air?

• oxygen

• nitrogen

• carbon dioxide

• ammonia

What is the formal name for your throat area?

• pharynx

• larynx

• throat

• esophagus