Respiratory System Worksheet
Name____________________
Date__________Period______
1. List the structures below in the order in which air passes through them as it travels from
the nose to the lungs.
2. Write the word from the box on the line that is being described.
diaphragm
alveoli
pharynx
trachea
exhalation
palate
bronchioles
a. smallest respiratory passageways in the lungs
______________________
b. separates mouth from nose
______________________
c. windpipe
______________________
d. location where gas exchange takes place
______________________
f. both air and food pass through this
______________________
g. The movement of air out of the lungs
______________________
h. The main muscle involved in inhalation
______________________
3. Arrange these statements in the right order to describe process of inhalation.
____ Air is drawn into the lungs
____ Air pressure in the chest cavity decreases
____ Lungs expand
____ The diaphragm contracts and flattens
____ The muscles between the ribs contract to move the ribs up and out
4. Add the following labels to the diagram of the lung alveolus, below showing the exchange
of gases that take place there.





alveolus (singular)
high concentration CO2
high concentration O2
movement of O2
movement of CO2
Answer the following from the video.
Answer the following questions:
1) What is the purpose/function of the Respiratory System?
2) What is the purpose of the tiny hairs called cilia in your nose?
3) What are the purposes of the pharynx?
4) What is the purpose of the epiglottis?
5) How is the respiratory system linked to the cardiovascular system?
Respiratory System Diagram
12
Write the name of the organ/structure next to the number then use
the color code.
1
7
2
8
3
9
4
10
5
11
6
12