2.1

As you breath in and out when do your lungs expand?

• when air rushes in

• when air rushes out

• when your diaphragm expands

• when your chest cavity relaxes

How do you describe the condition of the diaphragm as one exhales?

• the diaphragm contracts

• the diaphragm relaxes

• the diaphragm goes down

• both a and c

What material in a lung model represents the diaphragm

• Y plastic tubes

• the plastic jar

• the plastic sheet

• 2 small plastic bags

a dome shaped sheet of muscle, the _________, separates the chest from the abdomen

• diaphragm

• epiglottis

• alveoli

• bronchial tubes

What are the main organs of gas exchange in the respiratory system?

• diapragm

• lungs

• trachea

• bronchi

The main ORGAN responsible for breathing is:

• the Brain

• the Lungs

• the Liver

• the Kidneys

The trachea branches off into two:

• Alveoli

• Bronchus

• Bronchioles

What is another name for the windpipe?

• Lungs

• Trachea

• Larynx

• Esophagus

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