BIOL 3320 - Respiratory System
Place the following structures in the correct order through which a molecule of air would
pass as it moves from the nose to the alveoli.
1. Nasopharynx
2. Oropharynx
3.Laryngopharynx
4. Trachea
5. Carina
6. Main Bronchi
7. Lobar Bronchi
8. Segmental Bronchi
9. Bronchiole
10. Terminal Bronchiole
11. Respiratory Bronchiole
Which of the following are bicarbonate ions exchanged for when they diffuse from
plasma back into red blood cells?
Chloride ions
At the respiratory membrane, the partial pressure of carbon dioxide in the plasma is
_____ than in the _____ of the lungs.
higher, alveoli
Place the labels in the correct sequence, indicating the order this reversible reaction will
occur within the PULMONARY CAPILLARIES. You should start with and end with either
carbon dioxide or bicarbonate.
HCO3- + H+ --> H2CO3 --> H2O + CO2
The___ is the amount of air remaining in the lungs after a forced expiration.
residual volume
The volume of air exchanged during normal breathing is called the_____.
tidal volume
After a normal inspiration, the amount of air that can be inspired forcefully is called the
____
inspiratory reserve volume
If you subtract the residual volume from the total lung capacity, you get the ____
vital capacity
The vital capacity minus the _____ equals the inspiratory capacity
expiratory reserve volume
The effects of obstructive diseases such as asthma or emphysema may be determined
by measuring the ____
forced expiratory volume