Anatomy
3. What is the job of the conchae?
a. Increase the surface area within the nasal cavity for more warming, cleaning, humidifying
b. Provide voice resonance
c. Reduce the weight of the skull
d. Blocks food from entering the airway
a- Increase the surface area within the nasal cavity for more warming, cleaning, and humidifying
21. What is the volume of air in the conducting division referred to as?
a. Alveolar dead space
b. Anatomic dead space
c. Residual volume
d. Reserve volume
b- Anatomic dead space
**BONUS**
6. Which of the following produces mucus?
a. Goblet cells
b. Alveoli
c. Pleural membrane
d. Cilia
1. Which of the following is not a function of the respiratory system?
a. Regulation of body fluid pH
b. Removal of bacteria from inhaled air
c. Provide oxygen and remove carbon dioxide
d. Regulate interstitial fluid volume
d- Regulate interstitial fluid volume
14. Intrapleural pressure is always _____________ intrapulmonary pressure.
a. Less than
b. Greater than
c. The same as
d. It depends on how much O2 is needed by the body cells
a- Less than
22. Which of the following describes why CO2 diffuses despite it’s low concentration gradient?
a. High diffusion coefficient
b. Low affinity for Carbon with Oxygen
c. Large difference in atmospheric CO2 and alveolar CO2
d. It doesn’t diffuse
a- High diffusion coefficient
**BONUS**
28. How is most of the CO2 in our blood carried?
a. Dissolved in blood
b. Bound to Hb
c. Converted to bicarbonate
d. Carrier proteins
9. Beginning at the nasal cavity what is the correct order of structures that will follow…
a. Pharynx, Trachea, Larynx
b. Larynx, Trachea, Bronchi
c. Trachea, Bronchioles, Bronchi
d. Pharynx, Bronchioles, Larynx
b- Larynx, Trachea, Bronchi
18. What does the term lung compliance refer to?
a. How easily the alveoli collapse
b. How easily the lungs expand
c. How quickly O2 is transported across the respiratory membrane
d. How much air enters the respiratory system each minute
b- How easily the lungs expand
2. Throughout the conducting division which of the following does not occur?
a. Bacteria particles are removed
b. Carbon Dioxide is transported into the respiratory tract
c. Air is warmed
d. Water vapor is added to air
b- Carbon dioxide is transported into the respiratory tract
**BONUS**
13. Which of the following phases of respiration refers to gas exchange between blood and cells?
a. External Respiration
b. Cellular Respiration
c. Gas Transport
d. Internal Respiration
15. What relationship is explained by Boyle’s Law?
a. Pressure and volume have a linear relationship
b. Pressure and concentration have a linear relationship
c. Pressure and volume have an inverse relationship
d. Pressure and concentration have an inverse relationship
c- Pressure and volume have an inverse relationship
27. During exercise, the PO2 of blood in the pulmonary vein will be __________ normal.
a. Higher than
b. Lower than
c. The same as
c- The same as
**BONUS**
25. How will doubling the PO2 of alveolar air alter the Hb % saturation?
a. Increase it
b. Decrease it
c. Stay the same
10. Which of the following anatomical changes occurs as you move from the trachea to the smallest bronchioles?
a. Smooth muscle decreases
b. Cartilage decreases
c. Mucus secretion increases
d. Presence of cilia increases
b- Cartilage decreases
12. What is a pneumothorax?
a. Air in the pleural cavity
b. Air alveoli
c. Air in the pulmonary artery
d. Air in the respiratory membrane
a- air in the pleural cavity
7. Which of the following is not a characteristic of the respiratory membrane?
a. It is surrounded by a large amount of smooth muscle
b. It is very thin
c. It is highly vascularized
d. It has a large surface area
a- It is surrounded by a large amount of smooth muscle
16. The diaphragm contracts _____________, which _____________ the volume inside the thoracic cavity, thus ________________ intrapulmonary pressure __________. The result of the diaphragm contraction is ______________.
a. Superiorly, Increases, Increasing, Inhalation
b. Superiorly, Increases, Decreasing, Exhalation
c. Inferiorly, Increases, Increasing, Inhalation
d. Inferiorly, Increases, Decreasing, Inhalation
d- Inferiorly, Increases, Decreasing, Inhalation
23. What is a typical PCO2 of the pulmonary vein?
a. 40 mmHg
b. 45 mmHg
c. 100 mmHg
d. 140 mmHg
a- 40 mmHg
11. What lines the inner surface of the thoracic cavity?
a. Visceral pleura
b. Pleural cavity
c. Serous membrane
d. Parietal pleura
d- Parietal Pleura
**BONUS**
4. Which of the following does not describe the epithelium of the nasopharynx?
a. Pseudostratified
b. Type II cells
c. Ciliated
d. Columnar
20. Vital capacity refers to all lung volumes except….
a. Tidal volume
b. Expiratory reserve volume
c. Residual volume
d. Inspiratory reserve volume
c- Residual volume
8. What is the job of surfactant?
a. It lubricates the visceral and parietal layers
b. It works to convert H2O into O2
c. It buffers the blood
d. It reduces alveolar surface tension
d. It reduces alveolar surface tension
**BONUS** Not in packet!!
During cellular metabolism, atoms of oxygen are converted to molecules of…
a. Water
b. Hydrogen
c. ATP
d. Carbon dioxide
29. Which of the following is a receptor that provides sensory feedback to respiratory centers in the medulla oblongata and pons?
a. Central chemoreceptors
b. Osmoreceptors
c. Sensory motor neurons
d. Regulatory neurons
a- central chemoreceptors
26. Oxygen makes up _____% of total atmospheric pressure.
a. 50
b. 20
c. 100
d. 5
b- 20
5. What type of epithelium is found in the larynx?
a. Stratified squamous epithelium
b. Ciliated, columnar epithelium
c. Pseudostratified, ciliated, columnar epithelium
d. A & B
e. None of the above
d- A & B
19. Which of the following describes functional residual capacity?
a. The volume of air left in the lungs after a maximal exhalation
b. The volume of air left in the lungs after a normal exhalation
c. The volume of air able to be forcibly inhaled after a normal inhalation
d. The total exchangeable and nonexchangeable volume of air in the lungs
b- The volume of air left in the lungs after a normal exhalation
17. What muscles are responsible for normal exhalation?
a. Diaphragm
b. External Intercostals
c. Internal Intercostals
d. A & B
e. A, B, & C
f. None of the above
f- None of the above
30. How will hyperventilation affect the acidity our blood?
a. It will increase
b. It will decrease
c. It will not affect it
b- It will decrease
24. At rest the % saturation of Hb in the pulmonary veins is about ______, while the % saturation of Hb in systemic veins is about ________.
a. 100/75
b. 75/100
c. 100/40
d. 20/100
a- 100/75