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15 Cards in this Set
- Front
- Back
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What muscle do we contract during inspiration? |
The diaphragm |
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Which of the following respiratory system is NOT an airway? |
The alveoli |
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What Blood vessels within the respiratory system allow gas to exchange across their vessel walls? |
The Pulmonary Capillaries |
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We would increase our respiration in response to..? |
exercise |
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Dr. Bautista noted that the tidal volume is the amount of air that you breathe into and out of the respiratory system. For a person at (and is not exercising), what is the approximate tidal volume? |
~500mL |
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Approximately how much of the atmospheric air is made of Oxygen (O2)? |
20-21% |
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The molecule hemoglobin...? |
Can bind oxygen is found in red blood cells is called oxyhemoglobin after oxygen sticks to it contains iron |
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Dr. Bautista noted that some of the airways are wrapped with cartilage. What is the reason for this anatomical structure? |
The cartilage gives strength and rigidity of the airways. |
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The name of the structure that allows gas exchange between the atmosphere and the bloodstream is..? |
the alveolus |
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Dr. Bautista noted that we increase the volume of the lung during respiratory efforts. What is the reason we do this? |
As the volume increases, the pressure inside the lung drops below the atmospheric pressure. Air flows into the lung. |
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As blood flows past tissues (such as exercising muscle). what causes the hemoglobin release oxygen? |
The presence of local metabolites in the tissues. |
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Carbon dioxide can be carried in the blood... |
as a dissolved gas |
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What produces/creates carbon dioxide (CO2) in the body? |
As the cells create ATP, CO2 is also created as a waste product. |
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Dr. Bautista mentioned that the brainstem regulates respiration in response to input by the central chemoreceptive neurons. What did these chemosensitive neurons directly detect? |
Protons (H+) |
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Where in the respiratory system do we clean the air of dirt and pollen, and warm and humidify the air? |
In the bronchioles |
