Name:
Date:
Period:
Respiratory system practice
Objectives:
1. Be able to describe the role of the diaphragm in respiration
2. Be able to follow the path of air through the respiratory system
3. Be able to explain how the respiratory and cardiovascular systems are connected in getting oxygen to the cells
Part A- Read the paragraph about breathing on page 46 and use the “lung model” to understand what the
diaphragm is doing when we breathe in (inhalation) and breathe out (exhalation). Draw a picture of the
bottle (model) for both situations below.
Inhalation
Exhalation
Next, write a sentence in the box below each picture to describe what the diaphragm is doing (contracting/
relaxing and what is happening with the air)
Part B- Now, trace the path of air through the respiratory system below. Use arrows to create a flow chart
starting with the nose and ending in the blood. Hint: There are 8 steps
Nose
→
→
Capillaries/
Blood
Part C- The respiratory system gets the oxygen into the body but the cardiovascular system transports it
throughout the body. 1. Draw a picture in the box below to show how the alveoli and capillaries work
together to connect these two systems. 2. Then, write a few sentences explaining how they complete this
task.
Description of O2 and CO2 exchange: