| ACT #7: Respiratory Organs
(pg. 910 Alligator text) (A) Sketch the organs of the respiratory systems from class (Just insert your notes from class.) Make sure you understand the directionality of the flow of gases. (B) What is the importance of the diaphragm? (C) What is the importance of the alveoli? ACT #8: Gas Exchange (pg. 914 text) (A) What is a pressure gradient? Explain how a pressure gradient would allow or aid in the exchange of gases. How is a pressure gradient like a concentration gradient? (B) There are 3 factors which can increase or decrease the amount of gases exchanged. Explain how each factor effects the amount of gases exchanged: 1) Surface Area: 2) Ventilation: 3) Transport Cells: ACT #9: The Movements of Breathing In your notebook, copy the chart below. Fill in the chart with information about breathing. When you breathe in, When you breathe out, what happens to: What happens to: Diaphragm and rib muscles Chest cavity volume Air pressure in chest Air goes where? ACT #10: When the Lungs break down (pg.916 text) A) What are the effects of Emphysema on your lungs? B) What are the effects of asthma on your lungs? |