Lymphatic/Respiratory Flashcards Preview

Anatomy II > Lymphatic/Respiratory > Flashcards

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

Venous Drainage

Returns all blood to the heart