Respiratory System



Respiratory System HOMEWORK QUESTIONS #1

Ch. 18 – Page 364

1. Define the difference between breathing and respiration (p364).

2. What is cellular respiration?

3. What 3 things happen to the air as it enters the nose and encounters the mucous membranes? (p 366)

4. Describe the location of the three main parts of the pharynx.

5. What are the glottis and the epiglottis?

6. How does the trachea stay open and keep its shape? (p 367)

7. Cells with cilia line the airways. What do the cilia do?

8. What is the name of the junction between bronchi and lungs, and what special structures are present here?

9. What structures enable gases able to enter and leave the alveoli?

10. What is the mediastium and what shape do lungs have to accommodate it?

Respiratory System Homework Questions #2

“The Process of Breathing” (pg 369)

1. Describe the two phases of ventilation.

2. What happens to the diaphragm when you:

a. Inhale?

b. Exhale?

3. What is compliance?

4. What is the process (and its definition) by which gases move across cell membranes?

5. Why do cells need oxygen? (pg 372)

6. Where does carbon dioxide in the tissues come from (pg 372)?

7. Give the main way in which CO2 is transported in the blood.

8. What is the name of the nerve that goes from the medulla to the diaphragm?

9. Where are chemo receptors found in the body and what are they for?

10. What is hyperventilation? Hypoventilation? What happens to the carbon dioxide level in the blood during these times?

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