Science Starter Why is it important for doctors to know tidal volume and vital capacity of a patient’s lungs? How can one increase vital capacity? Name examples of things that can decrease a persons tidal volume or vital capacity? Do you think tidal volume can be changed without changing vital capacity? (or vice versa)

Today’s Agenda Science Starter Asthma, what is it? Pulmonary Obstruction Activity Respiratory System Study Questions Exit Quiz

https://www.youtube.com/watch?v=LZN1MK_TICs

Pulmonary Obstruction Activity How does it feel to have a obstructed/restricted breathing and how does it effect the person? In this experiment you will find out how this feels and how this can effect cognitive function! Be sure to read all procedures and follow along to avoid being lost!

What is the first step in respiration? When is the air pressure in the lungs lower (volume greater) than outside the body? Where does the gas exchange occur? What is an obstructive disorder? What is a restrictive disorder?

Pulmonary Obstruction Activity You need the following (straw, paper towel) First we will experience lung disease For the experiment portion, be sure to fill out the variables & hypothesis before we begin! DO NOT write words while I am reading, wait. (don’t cheat!) Be sure to place all materials in the trash

Pulmonary Obstruction Activity How many students wrote the word “rain” in the Unrestricted Breathing List? How many students wrote the word “snow” in the Restricted Breathing List?

Respiratory System Study Questions Complete the Respiratory System Questions for homework You can use the book today in class if you would like Most answers should be available from yesterday’s class and today’s activity sheet

Exit Quiz 3. Asthma is an example of ____ lung disorder because airflow is blocked due to the narrowing of the airways. A. a genetic B. an obstructive C. a restrictive 4. Emphysema is an example of ____ lung disorder because lung volume is reduced due to a loss of elasticity in the alveoli. 1. ____ is the mechanical movement of air in and out of the lungs without obstruction. A. Inspiration B. Expiration C. Ventilation 2. In the alveoli, oxygen is moved from the lungs into the blood, and ____ is moved from the blood into the lungs. A. calcium phosphate B. carbon dioxide C. nitrous oxide