They branch from the trachea at the carina
a. terminal bronchioles
b. secondary bronchi
c. tertiary bronchi
d. primary bronchi
e. alveolar ducts
Answer: d
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Respiratory
- Describe how oxygen and carbon dioxide are transported in the blood.
- What are the primary functions of the respiratory system?
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- Most of the oxygen transported by the blood is
- Most of the carbon dioxide in the blood is transported as
- The most important chemical regular of respiration is
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