1. Lung Diagram
adenoids
nostrils
tonsils
pharynx
larynx
trachea
left lung
right Lung
bronchi
pleura
bronchioles
alveoli
diaphragm

2. Respiratory Parts and Function
Nostrils: two external openings in the nasal
cavity
admits air to the lungs
filtration of the air
moisturization of the air

3. Respiratory Parts and Function
Adenoids: lymphatic tissue on the back of the
throat
filters out infections

4. Respiratory Parts and Function
Tonsils: lymphatic tissue located on the
sides of the throat
filters out infections

5. Respiratory Parts and Function
Trachea: “windpipe”
passageway for air
located between the larynx
and bronchi
Pharynx: Throat
passageway for air and food

6. Respiratory Parts and Function
Larynx: vocal cords
“voice box”
Pleura: tissue that surrounds the lung

7. Respiratory Parts and Function
Bronchi: two passageways leading into
the lungs.
Bronchioles: smaller passageways for air to
travel within.

8. Respiratory Parts and Function
Alveoli: tiny air sacs
exchange of Oxygen and Carbon
dioxide.

9. Respiratory Parts and Function
Diaphragm: Muscle between chest and abdomen.
allows lungs to contract and
expand

10. Respiratory Parts and Function
Lungs: 2
large, lightweight respiratory organs
of the body covered by the pleura
Cilia: hair-like structure lining the respiratory
tract that sweeps out dust and germs.