Describe the respiratory system
brings oxygen into the body
gets rid of carbon dioxide
We need plants to survive
true

The part labeled 1
nose

The part labeled 2
mouth
sticky material that traps dust and germs
mucus
Air is warmed and moistened in the nose and mouth.
True

The part labeled 4
lung

The part labeled 8
trachea
large, flat muscle under the lungs
helps with breathing
diaphragm
What are the small hairs that line the nose called?
cilia

The part labeled 6
diaphragm

The part labeled 9
bronchial tube
allows air to pass to and from the lungs
trachea
Which part of the respiratory system divides into smaller and smaller tubes that end in air sacs?
bronchial tubes

the part labeled 11
air sacs

The part labeled 12
epiglottis
Tiny blood vessels that surround the air sacs
They carry oxygen and nutrients to tissues
During gas exchange, which gases are being traded?
oxygen and carbon dioxide

The part labeled 13
capillaries

The part labeled 5
bronchioles

The part labeled 3
larynx