12. Passive expiration is preceded by the:
a. recoil of the lungs
b. contraction of the internal intercostals muscles.
c. contraction of the diaphragm.
d. increase in atmospheric pressure.
e. increase in CO2 in the blood
14. Type I alveolar cells:
a. secrete surfactant.
b. are squamous epithelial cells.
c. are macrophages.
d. function mainly in the diffusion of gases.
e. Both B and D.
15. Which of the following structures is NOT a part of the respiratory system?
a. external nares
b. uvula
c. epiglottis
d. choanae
e. mouth
19. Which of the following is NOT considered a function of the respiratory system?
a. Regulation of acid-base balance
b. Production of sound
c. Filtering inspired air
d. Transport of oxygen and carbon dioxide to tissue cells
e. Intake of oxygen and elimination of carbon dioxide
20. Breathing is more difficult in higher altitudes because the
a. air weighs less
b. partial pressure of atmospheric oxygen is lower
c. partial pressure of atmospheric carbon dioxide is higher
d. partial pressure of atmospheric nitrogen is lower
e. partial pressure of atmospheric oxygen is higher
27. During expiration a decrease in thoracic cavity size causes a (an) in pressure thus causing the lungs to recoil resulting in a (an) in pressure respectively.
a. decrease intraplueral; decrease intrapulmonary
b. decrease intraplueral; increase intrapulmonary
c. increase intraplueral; decrease intrapulmonary
d. decrease intrapulmonary; increase intraplueral
e. increase intrapleural ; increase intrapulmonary
66. During _____________ ______________, oxygen enters the blood and carbon dioxide leaves the blood, and enters the alveoli.
68. Hemoglobin buffers the pH of the cytosol of RBC by combining with ______ions
12. Passive expiration is preceded by the:
a. recoil of the lungs
b. contraction of the internal intercostals muscles.
c. contraction of the diaphragm.
d. increase in atmospheric pressure.
e. increase in CO2 in the blood
14. Type I alveolar cells:
a. secrete surfactant.
b. are squamous epithelial cells.
c. are macrophages.
d. function mainly in the diffusion of gases.
e. Both B and D.
15. Which of the following structures is NOT a part of the respiratory system?
a. external nares
b. uvula
c. epiglottis
d. choanae
e. mouth
19. Which of the following is NOT considered a function of the respiratory system?
a. Regulation of acid-base balance
b. Production of sound
c. Filtering inspired air
d. Transport of oxygen and carbon dioxide to tissue cells
e. Intake of oxygen and elimination of carbon dioxide
20. Breathing is more difficult in higher altitudes because the
a. air weighs less
b. partial pressure of atmospheric oxygen is lower
c. partial pressure of atmospheric carbon dioxide is higher
d. partial pressure of atmospheric nitrogen is lower
e. partial pressure of atmospheric oxygen is higher
27. During expiration a decrease in thoracic cavity size causes a (an) in pressure thus causing the lungs to recoil resulting in a (an) in pressure respectively.
a. decrease intraplueral; decrease intrapulmonary
b. decrease intraplueral; increase intrapulmonary
c. increase intraplueral; decrease intrapulmonary
d. decrease intrapulmonary; increase intraplueral
e. increase intrapleural ; increase intrapulmonary
66. During _____________ ______________, oxygen enters the blood and carbon dioxide leaves the blood, and enters the alveoli.
68. Hemoglobin buffers the pH of the cytosol of RBC by combining with ______ions
Related textbook solutions
Related questions
1. A blood vessel thatbecomes damaged and increases in diameter will fail because thetension in the walls _____ when compared to the previoulsyundamaged vessel.
A. decreases with anincreased diameter
B.decreases withpressure
C. increases with decreasedvessel thickness
D. decreases with increasedvessel thickness
E. increases with anincreased diameter
2. This nerve controls quiet respiration.
A. intercostalnerve
B. phrenic nerve
C. Diaphragmaticnerve
D.vagus nerve
E. pulmonaryplexus
3. Which of the following has no effect on oxyhemoglobindissociation?
A. lactic acid
B. fever
C. high tissue carbon dioxide
D. low ph
E. blood pressure
4. Surfactant of the lungs is created by
A. Oat cells.
B. lungmacrophages.
C. Type Ipneumocytes.
D. Type IIpneumocytes.
E. Goblet Cells
5. What is the medical termused to describe a lung that is no longer exchanging gases due tothe physical collapse of the alveoli (collpased lung)?
|
6. If an individual removesthe surfactant from the lungs by inhaling and then exhaling asubstantial quantity of fresh water, the ____.
| A. alveoli would increase indiameter | ||
| B. alveoli would decrease indiameter | ||
| C. bronchioles would increasein diameter | ||
| D. bronchioles would decreasein diameter | ||
| E. vital capacity wouldincrease | ||
| F. anatomical dead air spacewould increase | ||
7. The chemoreceptors thatbest monitor the affects of respiration are found in
| A. the brainstem. | ||
| B. the carotidbaroreceptor. | ||
| C. the aoritcarch. | ||
| D. the kidney. | ||
| E. the cerbrospinalfluid. | ||
8. Henry's Law deals with
| A. the total pressure of agas being made of the partial pressures of theindividual constituents | ||
| B. the volume of a gas isrelated to the temperature and pressure | ||
| C. the pressure of a gas isdirectly related to its velocity | ||
| D. oxygen binding hemoglobinis temperature dependent | ||
| E. oxygen binding hemoglobinis pH dependent |
9. The amount of air in excess of tidal volume that can beinhaled with maximum effort is called
| A. vital capacity. | ||
| B. inspiratory reservevolume. | ||
| C. expiratory reservevolume. | ||
| D. residualvolume. | ||
| E. inspiratorycapacity. |
10. Large amounts of air in the pleural spaces of a lung willcause the lung to collapse because ___________.
| A. the pressure of thetrapped air prevents inflation of the lung | ||
| B. the trapped air will goout a hole called the pnuemothorax | ||
| C. the lung is not longerstuck to the parietal pleural lining | ||
| D. the lung has lostsurfactant | ||
| E. the air will not beabsorbed outside of an alveoli |
11. Most carbon dioxideproduced by cellular metabolism is
| A. carried by the red bloodcells bound to hemoglobin | ||
| B. carried in the bloodplasma as bicarbonate | ||
| C. carried in the red bloodcells as bicarbonate | ||
| D. carried in the plamsa asdissolved gas | ||
| E. carried in the red bloodcell as dissolved gas | ||
12. If I have a blood vessel that doubles in diameter, at the samepressure I would expect about ____ as much blood to go throughit.
| A. 2 times | ||
| B. 4 times | ||
| C. 8 times | ||
| D. 16 times | ||
| E. 32 times | ||
| F. 64 times |
