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: