Flashcards in Lymphatic/Respiratory Deck (44)
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31
Secondary Bronchi
Branches into one secondary bronchus for each lobe
32
Tertiary Bronchi
10 on the right, 8 on the left
33
Bronchioles
Have layer of smooth muscles
Lack cartilage
34
Pulmonary Lobule
Portion ventilated by one bronchiole
35
Terminal Bronchiole
Has cilia, gives off two or more respiratory bronchioles
36
Respiratory Bronchioles
Where gas exchange occurs
37
Alveolar Ducts
End in alveolar sacs
38
Alveoli
Bud from respiratory bronchioles, alveolar ducts, and alveolar sacs
39
Type 1 Alveolar Cells
Simple squamous cells where gas exchange occurs
40
Type 2 Alveolar Cells
Septal cells
Secrete alveolar fluid containing surfactant
41
Alveolar Dust Cells
Wandering macrophages that remove debris
42
Alveolar Membrane
Alveolar epithelial, basement membrane, alveolar endothelial
43
Bronchial Arteries
Branch off of the aorta to supply oxygenated blood to lung tissue
44
