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Flashcards in Practical Deck (44):
1

Muscular bronchiole key features (3): 

  1. No cartilage
  2. Surrounded by smooth muscle
  3. Surrounded by lung tissue

2

Identify the cell marked by the curved arrow.

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Alveolar macrophage (Dust cell)

3

Identify the cell indicated by the red arrow.

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Type I pneumocyte

  • involved in gas exchange
  • nuclei is flattened
  • cytoplasm is very extenuated
  • cover about 95% of the alveolar surface

4

Identify the organ:

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  • Larynx:
    • Vocal fold (VO) (true vocal cord)
    • Ventral fold (VE)

5

Structures composing the mucociliary escalator:

  1. ciliated cells (cilia)
  2. goblet cells (mucous)

6

Arrowhead points to:

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blood vessel

7

Alveolar macrophage (Dust cell) locations:

  1. CT of alveolar septum
  2. air space of alveolus
     

8

Identify the structure.

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  • Muscular bronchiole:
    • No cartilage
    • Surrounded by smooth muscle
    • Surrounded by lung tissue

9

Identify the tissue at the arrow.

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Hyaline cartilage: keeps airway passages open

10

Identify the entire structure. 
Insert shows lining of structure.

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  • Trachea
    • C-shaped cartilage ring
    • Not surrounded by lung tissue

11

Identify the cell:

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clara cell

  • domed shaped cell

12

Functions of Alveolar macrophage (Dust cell):

  1. Remove inhaled particulate matter
  2. Secrete antitrypsin inhibitor
  3. Neutrophils secrete elastase

13

Type II pneumocytes cover about __% of alveolar air surface.

5%

14

Where do clara cells begin to appear? 

muscular bronchioles

15

Type II pneumocytes are progenitor cells for:

  • type I pneumocytes.

16

Identify the entire structure.

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  • Bronchus (intropulmonary bronchus):
    • Pseudostratified epithelium 
    • Surrounded by lung tissue 
    • Cartilage plates

17

Key features of trachea (2):

  1. C-shaped cartilage ring
  2. Not surrounded by lung tissue

18

Identify structure marked by the blue arrow.

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  • Alveolar pore (pores of Kohn)
  • Allows circulation of air from one alveolus to another.

19

Identify the organ:

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  • Lung: 
    • alveolar openings are lined with pneumocyte I and pneumocyte II cells

20

Identify the tissue at the surface.

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  • Olfactory epithelium: 
    • pseudostratified epithelium 
    • NO GOBLET CELLS

21

Identify the function of the cell indicated by the arrowhead.

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  • Goblet cell
  • secretes mucous to trap foreign particles

22

Identify the cell indicated by the arrow.

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Type II pneumocyte

  • Rounded in appearance with a rounded nuclei

23

Identify the structure at the arrowhead.

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  • Pulmonary artery
  • Arteries follow the bronchi and the bronchioles into the lung.
     

24

Pulmonary veins are located where in the lungs?

  • not next to bronchioles.
  • next to alveoli carrying oxygenated blood out.

25

Identify the tissue at the surface.

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respiratory epithelium

  • pseudostratified epithelium with goblet cells

26

Three structures of the Blood/Air barrier:
 

  • Endothelium
  • Shared basement membrane 
  • Type I pneumocyte

27

Key features of Olfactory epithelium (3): 

  1. pseudostratified epithelium 
  2. NO GOBLET CELLS
  3. thicker than respiratory epithelium

28

The outpocketings of respiratory bronchioles consist of:

Type I pneumocytes where gas exchange occurs.

29

Idenfity the cell:

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type II pneumocyte

  • Rounded cuboidal cell with a rounded nuclei
  • Lamellar granules fill the cytoplasm

30

Identify the structure within the oval.

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Blood/Air barrier

  • Consist of three structures: 
    • Endothelium 
    • Shared basement membrane 
    • Type I pneumocyte

31

Identify structure at red star:

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Bowman's glands.

32

Identify the structure:

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  • Respiratory bronchiole: 
    • The presence of outpocketings.

33

Function of Type II pneumocytes:

  1. Secretes surfactant which reduces surface tension
  2. Can divide and are progenitor cells for type I pneumocytes.

34

Key features of bronchi (3):

  • Pseudostratified epithelium 
  • Surrounded by lung tissue 
  • Cartilage plates

35

Function of Bowman’s glands:

  • secrete a proteinaceous solution which dissolve odor molecules.

36

Type I pneumocytes cover about __% of the alveolar surface:

95%

37

Cells in olfactory epithelium (4): 

  1. Olfactory receptor cells 
  2. Sustentacular cells
  3. Basal cells 
  4. DNES cells

38

Key features of respiratory epithelium (2):

  1. ciliated cells and goblet cells
  2. Thinner than olfactory epithelium

39

Do muscular bronchioles have any cartilage?

no

40

Identify structure at star:

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pulmonary vein

41

Function of clara cells:

  • Secretes a surfactant‐like substance which reduces surface tension

42

Identify structure at star:

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respiratory bronchiole

  • has outpocketings

43

Key features of Type II pneumocytes:

  1. Rounded cuboidal cell with a rounded nuclei
  2. Lamellar granules fill the cytoplasm

44

Vocal fold (true vocal cord) core contains:

  • vocalis muscle (skeletal muscle)
  • lined with stratified squamous epithelium