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49 Cards in this Set
- Front
- Back
No exchange of gases occurs here |
Segmental bronchi |
|
Secrete a fluid containing surfactant |
Type 2 Cells |
|
Where the respiratory zone of the lungs begins |
Respiratory Bronchioles |
|
Composed of simple squamous epithelium |
Type 1 cells |
|
Terminates in alveoli |
Alveolar duct |
|
TRUE or FALSE. Ventilation perfusion coupling means that more blood flows past functional alveoli than past nonfunctional alveoli |
True |
|
TRUE or FALSE. The functions of nasal conchae are to enhance the air turbulence in the cavity and to increase the mucosal surface area exposed to the air |
TRUE |
|
TRUE or FALSE. Intrapleural pressure is normally about 4mmhg less than the pressure in the Alveoli |
True |
|
TRUE or FALSE The largest amount of carbon dioxide is transported in the bloodstream in the form of carbonic anhydrase |
FALSE |
|
TRUE or FALSE Increase temperature results in decreased O2 unloading from hemoglobin |
FALSE |
|
TRUE or FALSE The parietal pleura line the thoracic wall |
TRUE |
|
Oxygenated hemoglobin releases oxygen more readily when the pH is more basic |
FALSE |
|
Which of the following below is not a functional process performed by the respiratory |
Transport of respiratory gases |
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They walls of alveoli are composed of two types of cells, type 1 and type 2. The function of type 2 is to |
Secrete surfactant |
|
Unlike inspiration, expiration is a passive act because no muscular contractions are involve. Expiration, however,depends on two factors. Which of the choice below list those two factors? |
The recoil of elastic fibers that were stretched during inspiration and the inward pull off surface tension due to film of alveolar fluid |
|
Which of the following maintains the patency (openness) of the trachea? |
Cartilage rings |
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The relationship between the pressure and volume of gases is given by |
Boyles law |
|
Surfactant helps to prevent the alveoli from collapsing by |
Interfering with the cohesiveness of water molecules, thereby reducing the surface tension of alveolar fluid |
|
With the Borh effect, more oxygen is released because a |
Decrease in pH (acidosis) weakens the hemoglobin-oxygen bond |
|
The most powerful respiratory stimulus for breathing in a healthy person is |
Increase of carbon dioxide |
|
In the plasma, the quantity of oxygen in solution is |
Only about 1.5% of the oxygen carried in dissolved form |
|
Which of the following statement is incorrect? |
Respiratory rate is lowest in newborn infants |
|
Which of the following is not form of lung cancer |
Kaposi's sarcoma |
|
Which of the following is not an event necessary to supply the body with O2 and dispose of CO2 |
Blood pH adjustment |
|
Tidal volume is air |
Exchange during normal breathing |
|
Which of choices below determine of respiratory gas movement? |
Partial pressure gradient |
|
The lungs volume that represents the total volume of exchangeable air is the |
Vital Capacity |
|
Respiratory control center are located in the |
Medulla and pons |
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The amount of air that can be inspired above the Tidal volume is called |
Inspiratory reserve |
|
Oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by |
Diffusion |
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Which respiratory associated muscle would contract if you were to blow up a balloon? |
Internal intercostal and abdominal muscles would contract |
|
Which of the following is not found on the right lobe of the lungs? |
Cardiac notch |
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Which of the following correctly describes mechanism of CO2 transport? |
Attached to the heme part of hemoglobin |
|
Factors that influence the rate and depth of breathing include |
Voluntary cortical control |
|
Gas emboli may occur because a |
Diver holds his breath upon ascent |
|
Inspiratory capacity is |
The total amount of air that can be inspired after a Tidal expiration |
|
A premature baby usually has did difficulty breathing. However, the respiratory system is developed enough for survival by |
28 weeks |
|
Which of the following statements is true regarding the respiratory rate of a newborn? |
The respiratory rate of a newborn is, at its highest rate, approximately 40-80 respiration per minute |
|
Select the correct statement about the neural mechanism of respiratory control |
The pons is thought to be instrumental in the smooth transition from inspiration to expiration |
|
The erythrocyte count increases after while when an individual goes from a low high altitude because the |
Concentration of oxygen and total atmospheric pressure is lower at high altitudes |
|
Most inspired particles such as dust fail to reach the lungs because of the |
Ciliated mucous lining in the nose |
|
Select the correct statement about oxygen transport in blood |
A 50% oxygen saturation level of blood returning to the lungs might indicated and activity level higher than normal |
|
Which of the disorder below is characterized by destruction of the walls of the alveoli producing abnormal large air that remain filled with air during exhalation? |
Emphysema |
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Which of the following does not influence hemoglobin saturation |
Nitric oxide |
|
Type 2 alveolar cells secrete |
Surfactant |
|
Is the most common lethal genetic disease in the United States |
Cystic fibrosis |
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The cartilaginous flap that closes the Trachea during swallowing is called the |
Epiglottis |
|
The trachea is line with |
Ciliated pseudostratified columnar epithelium |
|
Terminal bronchioles are linen with |
Cuboidal Epithelium |