Respiratory Tree Model

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11 Terms

1
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after the larynx, the trachea ______

bifurcates (splits in 2)

2
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what does the trachea bifurcate to?

right and left primary bronchi

3
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order of respiratory tree (left)

  1. trachea

  2. left primary bronchus

  3. secondary bronchus

  4. tertiary bronchus

  5. terminal bronchiole

  6. respiratory bronchioles

  7. alveolus

  8. alveolar duct

  9. alveolar sac

4
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<p>what is pictured?</p>

what is pictured?

right primary bronchus

5
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<p>description of the <strong>right </strong>primary bronchus</p>

description of the right primary bronchus

wider and a bit more vertical

6
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<p>what is pictured?</p>

what is pictured?

left primary bronchus

7
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<p>description of the <strong>left </strong>primary bronchus</p>

description of the left primary bronchus

narrower and more bent/angular

8
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<p>what is pictured?</p>

what is pictured?

secondary bronchi (several)

9
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<p>what is pictured?</p>

what is pictured?

tertiary bronchi (many)

10
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<p>what is pictured? (posterior)</p>

what is pictured? (posterior)

trachealis muscle

11
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<p>what kind of muscle is the trachealis muscle?</p>

what kind of muscle is the trachealis muscle?

smooth muscle’

  • contracts when we cough

  • stretches when food goes down esophagus