Term
| For what metabolic reason does respiration occur? |
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Definition
| to supply cells with 02 for ATP synthesis and to remove C02 from the blood |
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Term
| The _____zone includes the alveoli, while the _________zone includes the trachea. |
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Definition
| respiratory and conducting |
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Term
| Occasionally food or liquids will "go down the wrong pipe," initiating a cough reflex. Which structural barrier has been breached if this happens? |
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Definition
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Term
| The respiratory membrane is composed of: |
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Definition
| the alveolar membrane, the capillary wall, and their fused basement membrane |
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Term
| Air moves into the lungs during inspiration due to the force of |
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Definition
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Term
| Air is forced out of the lungs during normal expiration due to: |
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Definition
| elastic recoil of tissues |
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Term
| Boyle's law explains that________. |
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Definition
| the pressure of gas varies inversely with its volume |
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Term
| Even the most forceful exhalation leaves air in the lungs; this is called the _______ and is needed to _______. |
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Definition
| residual volume; keep alveoli patent |
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Term
All of the following statements are true of inspiration except:
a)The rib cage is elevated
B) the diaphragm is relaxed
C)volume in the thoracic cavity has increased
D) intrapulmonary pressure has decreased |
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Definition
B) the diaphragm is relaxed
(this is not true of inspiration) |
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Term
The rate of oxygen diffusion across the respiratory membrane depends upon all of the following except:
A)The thickness of the respiratory membrane
B) The thickness of the respiratory membrane
C)partial pressure of oxygen in the blood
D)partial pressure of carbon dioxide in the blood |
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Definition
| D) partial pressure of carbon dioxide in the blood |
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